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e7c93451ee
1461466 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
e7c93451ee |
arm64 fixes for -rc1
- Fix randconfig build failure due to missing include of asm/insn.h.
- Reject unaligned hardware watchpoints which were silently being
truncated.
- Fix crash in KVM initialisation by deferring the read-only remapping
of the kernel data and bss sections.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Small crop of arm64 fixes for -rc1. We've got a build fix for a new
randconfig permutation, a fix for a long-standing truncation issue
with hardware watchpoints and a KVM initialisation fix for the newly
merged remapping of the kernel data and bss sections:
- Fix randconfig build failure due to missing include of asm/insn.h
- Reject unaligned hardware watchpoints which were silently being
truncated
- Fix crash in KVM initialisation by deferring the read-only
remapping of the kernel data and bss sections"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: Defer read-only remap of data/bss linear alias
arm64/hw_breakpoint: reject unaligned watchpoints that would truncate BAS
arm64: static_call: include asm/insns.h
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Linus Torvalds
|
c292ea294d |
The set of eCryptfs changes for the 7.2-rc1 merge window consists of:
- Code cleanup to replace kmalloc()/snprintf() with kasprintf() - Code cleanup to simplify code flow by removing an unnecessary variable There should be no functional changes. The patches have all spent time in linux-next and they pass all tests in the ecryptfs-utils tree. -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEKvuQkp28KvPJn/fVfL7QslYSS/0FAmo96M8RHGNvZGVAdHlo aWNrcy5jb20ACgkQfL7QslYSS/0RyRAAv1eObbk5F6oyz0oii7u+AJVhoVHiGUoS rHSo3JI5xA/0fM6jArXmiLqF6twyU0hzIiR04KIhp6IC6TvrSFuCPXrPRSzTQ1Nn 3ETW4W1nbie0T9fZqOaGLShTYK7PhhaJltS/qHmSzqZJXaLdy5QBR+vn89wBtCq7 23r9x2i097Qt4sP+SZoa5Auq3EEfj6+ZjX5Y2Ve6uOSXL5POh0vysiMAt9ROZfd9 jSNIM3EtfirKtFuZ2lcMBnBsZMSh7/6h2f0qCgptAQyVWEkINcW1i3wjv2durIe7 q5ws54BQ2eSdjA4AyL/kl/TtuV06k73XsTb3sAi+Au1T3MfVgEeXoYQA8MwYCgEp /qbBlnVA8Zr14wNEkBUPH7nVgLmpY6pF/GyQxiL017Nroa+hjyn9thsqNnA/xMzf CCsYhpw3Hn80pKyEvONtGxuTpMMmqjzrkoUCP5YmIo3tHibl4IlfxGhFHPtNEGtU 9/hAB4FuASnjgiYKp/UOnu6oPLww1WRMHw1hM4KYJxVYt0f/PxVp26QExCSvrMG4 xrl8kgt9CvPSRAWkhfPHecFvOi7a0UlscjdWlC4jh2eqnriMBhQzW4iCQQnMflMd y080VNlbOZcjyK7nz2HBhaG8nTG9mVPlXw7DjjVf42AoEsWzmkqDwfCG06oX/Vps 2PPQv+hjHUw= =TCHV -----END PGP SIGNATURE----- Merge tag 'ecryptfs-7.2-rc1-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs Pull ecryptfs updates from Tyler Hicks: "No functional changes, just code cleanups: - replace kmalloc()/snprintf() with kasprintf() - simplify code flow by removing an unnecessary variable" * tag 'ecryptfs-7.2-rc1-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs: ecryptfs: use kasprintf in ecryptfs_crypto_api_algify_cipher_name ecryptfs: remove redundant variable found_auth_tok |
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Linus Torvalds
|
71fab6fa76 |
50 ksmbd server fixes
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Merge tag 'v7.2-rc-part2-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server updates from Steve French:
"This is mostly a correctness and compatibility update for ksmbd's
SMB2/3 lease, oplock, durable handle, compound request, CREATE,
rename, stream and share-mode handling.
A large part of the series fixes cases found by smbtorture where ksmbd
diverged from the SMB2/3 protocol requirements.
The main changes are:
- Rework SMB2 lease state handling so lease state is shared per
ClientGuid/LeaseKey across opens, with better validation of lease
create contexts, ACK handling, epochs, break-in-progress reporting,
v2 lease notification routing, and chained lease breaks
- Fix several oplock break corner cases, including ACK validation,
timeout downgrade behavior, level-II break handling on unlink,
share-conflict lease breaks, and read-control/stat-open behavior
- Fix durable handle behavior around delete-on-close, stale
reconnects, reconnect context parsing, oplock/lease break
invalidation, and durable v2 AppInstanceId replacement
- Fix compound request handling so related commands propagate failed
statuses correctly, preserve response framing across chained
errors, keep compound FIDs across READ/WRITE/FLUSH, and send
interim STATUS_PENDING where clients expect cancellable compound
I/O
- Tighten CREATE and stream semantics, including create attribute
validation, allocation size reporting, explicit create security
descriptors, unnamed DATA stream handling, stream directory
validation, and stream delete sharing against the base file
- Fix rename and metadata behavior, including parent directory
sharing checks, denying directory rename with open children, and
preserving SMB ChangeTime across rename for open handles
- Fix two important safety issues: a multichannel byte-range lock
list owner race that could lead to use-after-free, and an NTLMv2
session key update before authentication proof validation
- Fix a concurrent SMB2 NEGOTIATE preauth use-after-free, a UBSAN
warning in compression capability parsing, a false hung-task
warning in the durable handle scavenger, endian debug logging,
Smatch indentation warnings, and kernel-doc warnings
- Increase the default SMB3 transaction size from 1MB to 4MB to
better match modern read/write negotiation and improve sequential
I/O behavior"
* tag 'v7.2-rc-part2-smb3-server-fixes' of git://git.samba.org/ksmbd: (50 commits)
ksmbd: fix kernel-doc warnings in smb2_lease_break_noti()
ksmbd: fix inconsistent indenting warnings
ksmbd: validate NTLMv2 response before updating session key
ksmbd: increase SMB3_DEFAULT_TRANS_SIZE from 1MB to 4MB
ksmbd: fix UBSAN array-index-out-of-bounds in decode_compress_ctxt()
ksmbd: sleep interruptibly in the durable handle scavenger
ksmbd: start file id allocation at 1
ksmbd: treat read-control opens as stat opens only for leases
ksmbd: validate :: stream type against directory create
ksmbd: break conflicting-open leases only as far as needed
ksmbd: break handle caching for share conflicts
ksmbd: normalize ungrantable lease states
ksmbd: return oplock protocol error for level II ack
ksmbd: avoid level II oplock break notification on unlink
ksmbd: downgrade oplock after break timeout
ksmbd: apply create security descriptor first
ksmbd: return requested create allocation size
ksmbd: tighten create file attribute validation
ksmbd: reject empty-attribute synchronize-only create
ksmbd: honor stream delete sharing for base file
...
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Linus Torvalds
|
ad054be811 |
17 smb3 client fixes
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Linus Torvalds
|
4edcdefd40 |
bpf-fixes
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Linus Torvalds
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8c04c1292d |
This is all clk driver updates. Mostly new SoC support for
various Qualcomm chips and Canaan K230. Otherwise there's non-critical fixes and updates to clk data such as adding missing clks to existing drivers or marking clks critical. Nothing looks especially exciting. -----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAmo9Q6oUHHN3Ym95ZEBj aHJvbWl1bS5vcmcACgkQrQKIl8bklSXXFA/9GpTMt3p0Mi/sT/AszYTU+RsVXGpW q7XQ3MnO6rzd/NvzVGTptmQdbOj54jl1yXosEmTs+Won9OtSuOPjxVamtDRTJMpl YOT5ixy4JNVBxwdxgyrSIoEQ6+MhTj91uBXA74MiO6Kk2CFTEHafTQC2P0HQyPv9 aaHx53ViKM6UwI6IgWajfmRS8CMzWlEjPFF6v9zG8vWAls22J1SkrW5h7ovFJM2F osl6OkNc6prRc0gOrhzmtekX2e1e3Eg9HKlXwNV58LRtysXMpmqTm2zYvxv0iltb GV2V5fX9fcJI45dWOGStxJ2mO6NswDWjNYF9kFefvpqVrRRluhX+Af9/bbqTwVXt +PEHsdJYRTzlaIbMuGfASTqmo6Sp5MkHG1PV5tAQglX16yVNMqk11gjoPHVA4zEF CRkC494s4nX2XMM85MBeqTyh8bue0LQqz9QAsUBaU0XRvJJhDMw81P34QOFTfq9n UEBmnv+dRqsHvXQsJzB+8q+F+kx12M3GIkGqX/O1eZT+9sGjTVY3XFIbvH01vN4W OGUB9q6ZixD25d8MA6mussel2O6An4S7NU+zRsSz1xZd2W7IGNtk908dr7mJOh13 8rG9DW73XRpKNYhX/IszDFjyPHUuZPYU8RyYTwf63ADGJHVVFcHZ78V4ORuPh2AY TnZt1wOsq1a/xd8= =hEhO -----END PGP SIGNATURE----- Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "This is all clk driver updates. Mostly new SoC support for various Qualcomm chips and Canaan K230. Otherwise there's non-critical fixes and updates to clk data such as adding missing clks to existing drivers or marking clks critical. Nothing looks especially exciting" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (106 commits) clk: qcom: regmap-phy-mux: Rework the implementation clk: qcom: a53: Corrected frequency multiplier for 1152MHz clk: qcom: camcc-milos: Declare icc path dependency for CAMSS_TOP_GDSC clk: qcom: gdsc: Support enabling interconnect path for power domain dt-bindings: clock: qcom,milos-camcc: Document interconnect path interconnect: Add devm_of_icc_get_by_index() as exported API for users clk: qcom: camcc-x1p42100: Add support for camera clock controller clk: qcom: camcc-x1e80100: Add support for camera QDSS debug clocks clk: qcom: videocc-x1p42100: Add support for video clock controller dt-bindings: clock: qcom: Add X1P42100 camera clock controller dt-bindings: clock: qcom: Add X1P42100 video clock controller clk: keystone: sci-clk: fix application of sizeof to pointer clk: keystone: don't cache clock rate clk: spacemit: k3: Add PCIe DBI clock dt-bindings: soc: spacemit: k3: Add PCIe DBI clock IDs clk: spacemit: k3: Fix PCIe clock register offset clk: spacemit: k3: Switch to pll2_d6 as parent for PCIe clock clk: at91: keep securam node alive while mapping it clk: samsung: exynos990: Fix PERIC0/1 USI clock types clk: renesas: r9a08g045: Drop unused pm_domain header file ... |
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Linus Torvalds
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ca3e303061 |
Support for Qualcomm PMIC arbiter v8.5 and Hawi along with a
kernel doc cleanup and a kzalloc flex usage. -----BEGIN PGP SIGNATURE----- iQJIBAABCAAyFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAmo9RuQUHHN3Ym95ZEBj aHJvbWl1bS5vcmcACgkQrQKIl8bklSWCyRAA0FGsUKaLRGB7NLY/UfuW0mUVCJul ATYOFizoIwWRuCzp/3pZDW4efinpHcmm27n62FkEXCp32R0Cga7TVTXi7Q0gCymh sgQ0eg6pnMobpf7OYb2vMf2eybcQKzg4OHyp+6+XSO9fysmdsWxsZu6+O986gJGU zu/c+7uTfIAAMHsuA3IQvEzimvG+dEPruOCIujF9QdyM7E668TuBUyG/cydyjofG drze/rrf/yiM9HBsUlXeVJYnmvu+qN2Nh9NLWVk48rpz6cs+bLlQDrp5g+gUBgSH ZB0K23UgM7biuPKUdMok7yUc0rMvD0fvlMCrgMTc5KLem0Rem01WfVgDLjMRUYay gepkv5aAi9Rf9CWXwu8NaXBi4henhuBc6UuCzTclw0HjuT8J7NwAqUW52hZDW19v 1n2w22hgJHma7ObOTTkmk45IENq55GwGI2KTGc8uOa3azh4uwxjMBA0TiLdyfjvR okd6ze1/7HX+LF5BIclElabMWd6aln5kZzMyEWA/nMoSsPEHMVz5vkA5qvi2674i ZpCN3Vje2CgOSJb5tGOjO7b0MB7TIyVf4h1/oFhIKh8QJhHY/yz21l90sr/IS80Y 5VONAJ4aoBhv8OE/EDAJWHeWx9mfHL6ASmjMU6Isn8+QRL9gUK2PKURnTjed+IYB +Hv89rnt7WUxPYo= =W+GR -----END PGP SIGNATURE----- Merge tag 'spmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi Pull SPMI updates from Stephen Boyd: "Support for Qualcomm PMIC arbiter v8.5 and Hawi along with a kernel doc cleanup and a kzalloc flex usage" * tag 'spmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi: spmi: use kzalloc_flex in main allocation spmi: clean up kernel-doc in spmi.h spmi: spmi-pmic-arb: add support for PMIC arbiter v8.5 dt-bindings: spmi: glymur-spmi-pmic-arb: Add compatible for Qualcomm Hawi SoC |
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Linus Torvalds
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75218b7ace |
rtla fixes for 7.2:
- Fix and cleanup .gitignore - Fix pgrep filter in get_workload_pids.sh Fix parsing of kernel thread names in get_workload_pids() helper function. On some systems pgrep matches kernel thread names including the brackets (e.g. "[osnoise/0]") and other systems brackets are not included. Fix the tests to handle both. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaj0udBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qgS1AQD8bo/T+tyBeumqV/gmObk+dRd1SVI/ H0aVZ+f7mmns1gEAiFLn0vWm0zslNjOAhn9exC7FVTScRXdTB6ehN6zBbQQ= =fhMS -----END PGP SIGNATURE----- Merge tag 'trace-tools-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull rtla fixes from Steven Rostedt: - Fix and cleanup .gitignore - Fix pgrep filter in get_workload_pids.sh Fix parsing of kernel thread names in get_workload_pids() helper function. On some systems pgrep matches kernel thread names including the brackets (e.g. "[osnoise/0]") and other systems brackets are not included. Fix the tests to handle both. * tag 'trace-tools-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: rtla/tests: Fix pgrep filter in get_workload_pids.sh rtla: Fix and clean up .gitignore |
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Linus Torvalds
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805185b7c7 |
Including fixes from netfilter and IPsec.
Current release - regressions:
- net: do not acquire dev->tx_global_lock in netdev_watchdog_up()
- net: ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
- net: fix deadlock in nested UP notifier events
Current release - new code bugs:
- eth: cn20k: fix subbank free list indexing for search order
- eth: airoha: fix BQL underflow in shared QDMA TX ring
Previous releases - regressions:
- netfilter:
- flowtable: fix offloaded ct timeout never being extended
- nf_conncount: prevent connlimit drops for early confirmed ct
Previous releases - always broken:
- require CAP_NET_ADMIN in the originating netns when modifying
cross-netns devices
- report NAPI thread PID in the caller's pid namespace
- mac802154: fix dirty frag in in-place crypto for IOT radios
- sctp: hold socket lock when dumping endpoints in sctp_diag,
avoid an overflow
- eth: gve: fix header buffer corruption with header-split and HW-GRO
- af_key: initialize alg_key_len for IPComp states, prevent OOB read
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and IPsec.
Current release - regressions:
- do not acquire dev->tx_global_lock in netdev_watchdog_up()
- ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
- fix deadlock in nested UP notifier events
Current release - new code bugs:
- eth:
- cn20k: fix subbank free list indexing for search order
- airoha: fix BQL underflow in shared QDMA TX ring
Previous releases - regressions:
- netfilter:
- flowtable: fix offloaded ct timeout never being extended
- nf_conncount: prevent connlimit drops for early confirmed ct
Previous releases - always broken:
- require CAP_NET_ADMIN in the originating netns when modifying
cross-netns devices
- report NAPI thread PID in the caller's pid namespace
- mac802154: fix dirty frag in in-place crypto for IOT radios
- sctp: hold socket lock when dumping endpoints in sctp_diag, avoid
an overflow
- eth: gve: fix header buffer corruption with header-split and HW-GRO
- af_key: initialize alg_key_len for IPComp states, prevent OOB read"
* tag 'net-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (213 commits)
selftests: bonding: add a test for VLAN propagation over a bonded real device
vlan: defer real device state propagation to netdev_work
net: add the driver-facing netdev_work scheduling API
net: turn the rx_mode work into a generic netdev_work facility
net: ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
rxrpc: Fix rxrpc_rotate_tx_rotate() to check there's something to rotate
rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)
rxrpc: Fix socket notification race
rxrpc: Fix potential infinite loop in rxrpc_recvmsg()
rxrpc: Fix oob challenge leak in cleanup after notification failure
rxrpc: Fix the reception of a reply packet before data transmission
afs: Fix uncancelled rxrpc OOB message handler
afs: Fix further netns teardown to cancel the preallocation charger
rxrpc: Fix double unlock in rxrpc_recvmsg()
rxrpc: Fix leak of connection from OOB challenge
rxrpc: Fix ACKALL packet handling
net: hns3: differentiate autoneg default values between copper and fiber
net: hns3: fix permanent link down deadlock after reset
net: hns3: refactor MAC autoneg and speed configuration
net: hns3: unify copper port ksettings configuration path
...
|
||
|
Linus Torvalds
|
c75597caad |
s390:
* Fix S390_USER_OPEREXEC so it can now be enabled regardless of other
unrelated capabilities
* Fix handling of the _PAGE_UNUSED pte bit that could lead to guest
memory corruption in some scenarios
* A bunch of misc gmap fixes (locking, behaviour under memory pressure)
* Fix CMMA dirty tracking
x86:
* Tidy up some WARN_ON() and BUG_ON(), replacing them with WARN_ON_ONCE()
or KVM_BUG_ON(). All of these have obviously never triggered, or
somebody would have been annoyed earlier, but still.
* Fix missing interrupt due to stale CR8 intercept
* Add a statistic that can come in handy to debug leaks as well as the
vulnerability to a class of recently-discovered issues.
* Do not ask arch/x86/kernel to export default_cpu_present_to_apicid()
just for KVM.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"s390:
- Fix S390_USER_OPEREXEC so it can now be enabled regardless of other
unrelated capabilities
- Fix handling of the _PAGE_UNUSED pte bit that could lead to guest
memory corruption in some scenarios
- A bunch of misc gmap fixes (locking, behaviour under memory
pressure)
- Fix CMMA dirty tracking
x86:
- Tidy up some WARN_ON() and BUG_ON(), replacing them with
WARN_ON_ONCE() or KVM_BUG_ON(). All of these have obviously never
triggered, or somebody would have been annoyed earlier, but still...
- Fix missing interrupt due to stale CR8 intercept
- Add a statistic that can come in handy to debug leaks as well as
the vulnerability to a class of recently-discovered issues
- Do not ask arch/x86/kernel to export
default_cpu_present_to_apicid() just for KVM"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits)
x86/apic: KVM: Use cpu_physical_id() to get APIC ID of running vCPU for AVIC
KVM: x86/mmu: Expose number of shadow MMU shadow pages as a stat
KVM: x86: Unconditionally recompute CR8 intercept on PPR update
KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode
KVM: x86: WARN (once) if RTC pending EOI tracking goes off the rails
KVM: x86: WARN and fail kvm_set_irq() if a PIC or I/O APIC vector is invalid
KVM: x86: Bug the VM, not the kernel, if the ISR count {under,over}flows
KVM: x86/mmu: Bug the VM, not the host kernel, if KVM write-protects upper SPTEs
KVM: x86: Replace BUG_ON() with WARN_ON_ONCE() on "bad" nested GPA translation
KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned()
KVM: s390: Return failure in case of failure in kvm_s390_set_cmma_bits()
KVM: s390: selftests: Fix cmma selftest
KVM: s390: Fix cmma dirty tracking
KVM: s390: Fix locking in kvm_s390_set_mem_control()
KVM: s390: Fix handle_{sske,pfmf} under memory pressure
KVM: s390: Fix code typo in gmap_protect_asce_top_level()
KVM: s390: Do not set special large pages dirty
KVM: s390: Fix dat_peek_cmma() overflow
s390/mm: Fix handling of _PAGE_UNUSED pte bit
KVM: s390: Fix typo in UCONTROL documentation
...
|
||
|
Jakub Kicinski
|
fe9f4ee6c6 |
Merge branch 'net-avoid-nested-up-notifier-events'
Jakub Kicinski says:
====================
net: avoid nested UP notifier events
syzbot reported that recent ethtool rework leads to deadlock
on stacked devices. VLANs create nested notifications, confusing
execution context. Bringing up dummy causes vlan to bring itself
up as well. Which in turn causes bond to ask for link state -
a call chain traveling in the opposite direction.
bond (3) bond_update_speed_duplex(vlan)
| ^ v
vlan (2) UP(vlan) (4) vlan_ethtool_get_link_ksettings()
| ^ v
dummy (1) UP(dummy) (5) __ethtool_get_link_ksettings()
We locked the instance lock of dummy at (1) and will will
try to lock it again at (5) - which of course deadlocks.
For non-nested notifications this is avoided because NETDEV_UP
is always run ops-locked (so that bond asks for link using the
netif_ API which assumes instance lock already held). The nesting,
however, makes this problematic, we cannot carry the state of
the whole chain back in the opposite direction.
AFAICT vlan is the only driver which causes such issues.
So let's try a localized fix of deferring vlan auto-open
to a workqueue.
====================
Link: https://patch.msgid.link/20260624182018.2445732-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
Jakub Kicinski
|
e83d0a2472 |
selftests: bonding: add a test for VLAN propagation over a bonded real device
Add a regression test for the VLAN notifier handling that the netdev_work deferral fixed. A VLAN's real device propagates its UP/DOWN, MTU and feature changes onto the VLANs stacked on top of it. This used to be done synchronously from the real device's notifier and deadlocked when the real device was brought up while enslaved to a bond (instance lock held across NETDEV_UP) and the VLAN on top was itself a bond member: the synchronous propagation re-entered the stack and took the same instance lock again. The test covers both halves: - that the deferred UP/DOWN, MTU and feature propagation actually lands on the VLAN (link state and MTU use an ops-locked dummy, i.e. the deferral path; features use veth, which exports vlan_features to inherit), and - that the deadlock-prone topology - a VLAN on a dummy, with the VLAN and the dummy each enslaved to a different bond - can be built without hanging. Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20260624182018.2445732-5-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Jakub Kicinski
|
cd1c188db1 |
vlan: defer real device state propagation to netdev_work
vlan_device_event() generates nested UP/DOWN, MTU and feature
change events. It executes an event for the VLAN device directly
from the notifier - while the locks of the lower device are held.
This causes deadlocks, for example:
bond (3) bond_update_speed_duplex(vlan)
| ^ v
vlan (2) UP(vlan) (4) vlan_ethtool_get_link_ksettings()
| ^ v
dummy (1) UP(dummy) (5) __ethtool_get_link_ksettings()
The dummy device is ops locked, vlan creates a nested event (2),
then bond wants to ask vlan for link state (3). bond uses the
"I'm already holding the instance lock" flavor of API. But in
this case the lock held refers to vlan itself. We hit vlan's
link settings trampoline (4) and call __ethtool_get_link_ksettings()
which tries to lock dummy. Deadlock. There's no clean way for us
to tell the vlan_ethtool_get_link_ksettings() that the caller
is already in lower device's critical section.
Defer the propagation to the per-netdev work facility instead:
the notifier only schedules netdev_work_sched(vlandev, VLAN_WORK_*),
and ndo_work (vlan_dev_work) applies the change later. Hopefully
nobody expects the VLAN state changes to be instantaneous.
If someone does expect the changes to be instantaneous we will
have to do the same thing Stan did for rx_mode and "strategically"
place sync calls, to make sure such delayed works are executed
after we drop the ops lock but before we drop rtnl_lock.
Stan suggests that if we need that down the line we may
consider reshaping the mechanism into "async notifications".
AFAICT only vlan does this sort of netdev open chaining,
so as a first try I think that sticking the complexity into
the vlan code makes sense.
One corner case is that we need to cancel the event if user
explicitly changes the state before work could run. Consider
the following operations with vlan0 on top of dummy0:
ip link set dev dummy0 up # queues work to up vlan0
ip link set dev vlan0 down # user explicitly downs the vlan
ndo_work # acts on the stale event
Reported-by: syzbot+09da62a8b78959ceb8bb@syzkaller.appspotmail.com
Reported-by: syzbot+cb67c392b0b8f0fd0fc1@syzkaller.appspotmail.com
Reported-by: syzbot+9bb8bd77f3966641f298@syzkaller.appspotmail.com
Fixes:
|
||
|
Jakub Kicinski
|
129cdce9da |
net: add the driver-facing netdev_work scheduling API
With an extra event mask we can easily extend the netdev work to also service driver-defined events. For advanced drivers this is probably not a perfect match, but it makes running deferred work easier in simple cases. Expose the netdev_work facility to drivers. Add helpers to schedule work and a dedicated ndo to perform the driver- -scheduled actions. Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20260624182018.2445732-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Jakub Kicinski
|
12c765be84 |
net: turn the rx_mode work into a generic netdev_work facility
The rx_mode update runs from a workqueue: drivers have their ndo_set_rx_mode_async() callback executed by a single global work item under RTNL and ops lock. This is a useful pattern. Support multiple "events" that need to be serviced and make RX_MODE sync the first one. Call the events "core" because later on we will let drivers define and schedule their own. Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20260624182018.2445732-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Jakub Kicinski
|
1105ef941c |
net: ethtool: keep rtnl_lock for ops using ethtool_op_get_link()
Breno reports following splats on mlx5:
RTNL: assertion failed at net/core/dev.c (2241)
WARNING: net/core/dev.c:2241 at netif_state_change+0xed/0x130, CPU#5: ethtool/1335
RIP: 0010:netif_state_change+0xf9/0x130
Call Trace:
<TASK>
__linkwatch_sync_dev+0xea/0x120
ethtool_op_get_link+0xe/0x20
__ethtool_get_link+0x26/0x40
linkstate_prepare_data+0x51/0x200
ethnl_default_doit+0x213/0x470
genl_family_rcv_msg_doit+0xdd/0x110
Looks like I missed ethtool_op_get_link() trying to sync linkwatch,
which needs rtnl_lock. Not all drivers do this - bnxt doesn't,
it just returns the link state, so add an opt-in bit.
Reported-by: Breno Leitao <leitao@debian.org>
Fixes:
|
||
|
Jakub Kicinski
|
2c0f1b651d |
Merge branch 'rxrpc-miscellaneous-fixes'
David Howells says:
====================
rxrpc: Miscellaneous fixes
Here are some miscellaneous AF_RXRPC fixes for more stuff found by Sashiko[1][2]:
(1) Fix ACKALL handling by adding two more call states to simplify when
ACKs are valid.
(2) Fix connection leak from AF_RXRPC recvmsg userspace OOB handling.
(3) Fix double unlock in AF_RXRPC recvmsg userspace OOB handling.
(4) Fix AFS preallocate charge to flush the waitqueue after unlistening
the socket so that any charging thread that does manage to get started
will be waited for before socket destruction.
(5) Fix AFS OOB notify handling to cancel in-progress OOB notification
handling and then to flush the workqueue it's on.
(6) Fix handling of apparent reply reception before initial transmission
starts in client call.
(7) Fix OOB challenge leak in cleanup on notification failure.
(8) Fix infinite loop in recvmsg if OOB packet available, but no calls.
(9) Fix notify vs recvmsg race where notify thinks the call is already
queued.
(10) Fix MSG_PEEK call leak for calls with no content.
(11) Fix rxrpc_rotate_tx_window() to check that there's something in the Tx
buffer before attempting to rotate it.
====================
Link: https://patch.msgid.link/20260624163819.3017002-1-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|
David Howells
|
a5462da5a3 |
rxrpc: Fix rxrpc_rotate_tx_rotate() to check there's something to rotate
Fix rxrpc_rotate_tx_rotate() to check that there's something in the
transmission buffer to be rotated before it attempts to rotate anything.
Fixes:
|
||
|
David Howells
|
4bdb9e471f |
rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)
Fix rxrpc_recvmsg() to also drop the ref it holds on an already-released
call if MSG_PEEK is in force (the function holds a ref on the call
irrespective of whether MSG_PEEK is specified or not).
Fixes:
|
||
|
David Howells
|
e66f8f32f5 |
rxrpc: Fix socket notification race
There's a race between rxrpc_recvmsg() and rxrpc_notify_socket(), whereby
the latter's attempt to avoid disabling interrupts and taking the socket's
recvmsg_lock if the call is already queued may happen simultaneously with
the former's discarding of a call that has nothing queued.
Fix this by removing the shortcut. Note that this only affects userspace's
use of AF_RXRPC; the AFS filesystem driver doesn't use the socket queue.
Fixes:
|
||
|
David Howells
|
67a0332f44 |
rxrpc: Fix potential infinite loop in rxrpc_recvmsg()
Fix the wait in rxrpc_recvmsg() also take check the oob queue.
Fixes:
|
||
|
David Howells
|
092275882a |
rxrpc: Fix oob challenge leak in cleanup after notification failure
Fix rxrpc_notify_socket_oob() to return an indication of failure in the
event that it failed to queue a packet and fix rxrpc_post_challenge() to
clean up the connection ref in such an event.
Fixes:
|
||
|
David Howells
|
a58e33405a |
rxrpc: Fix the reception of a reply packet before data transmission
Fix rxrpc_receiving_reply() to handle the reception of an apparent reply
DATA packet before rxrpc has had a chance to send any request DATA packets
on a client call by checking to see if the call has been exposed yet by
sending the first packet.
Without this, rxrpc_rotate_tx_window() might oops.
Also fix rxrpc_rotate_tx_window() to handle the Tx queue being empty by
changing the do...while loop into a while loop, just in case a call is
abnormally terminated by an early reply before the last request packet is
transmitted.
Fixes:
|
||
|
David Howells
|
a4057e58b0 |
afs: Fix uncancelled rxrpc OOB message handler
Fix AFS to cancel its OOB message processing (typically to respond to
security challenges). Also move OOB message processing to afs_wq so that
it's also waited for and make the OOB handler just return if the net
namespace is no longer live.
Fixes:
|
||
|
David Howells
|
2daf8ac812 |
afs: Fix further netns teardown to cancel the preallocation charger
When an afs network namespace is torn down, it cancels and waits for the
work item that keeps the preallocated rxrpc call/conn/peer queue charged
before disabling incoming (i.e. listen 0), but there's a small window in
which it can be requeued by an incoming call wending through the I/O
thread.
Fix this by cancelling the charger work item again after reducing the
listen backlog to zero.
Fixes:
|
||
|
David Howells
|
a2f299b4d5 |
rxrpc: Fix double unlock in rxrpc_recvmsg()
Fix a double unlock in rxrpc_recvmsg() when dealing with OOB messages.
Fixes:
|
||
|
David Howells
|
4b28876e78 |
rxrpc: Fix leak of connection from OOB challenge
Fix leak of connection object from OOB challenge queue when response is
provided by userspace.
Fixes:
|
||
|
Wyatt Feng
|
9b6ce59480 |
rxrpc: Fix ACKALL packet handling
rxrpc_input_ackall() accepts ACKALL packets without checking whether the
call is in a state that can legitimately have outstanding transmit buffers.
A forged ACKALL can therefore reach a new service call in
RXRPC_CALL_SERVER_RECV_REQUEST before any reply packets have been queued.
In that state call->tx_top is zero and call->tx_queue is NULL, so
rxrpc_rotate_tx_window() dereferences a NULL txqueue and triggers a
null-pointer dereference.
Fix the handling of ACKALL packets by the following means:
(1) Add two new call states: RXRPC_CALL_CLIENT_PRE_SEND which indicates
that the client call is connected, but nothing has been transmitted as
yet; and RXRPC_CALL_CLIENT_AWAIT_ACK, which indicates that everything
has been transmitted at least once, but we're now waiting for the
stuff remaining in the Tx buffer to be ACK'd (retransmissions may
still happen).
The RXRPC_CALL_CLIENT_PRE_SEND state is set when the call is assigned
a channel and transitions to RXRPC_CALL_CLIENT_SEND_REQUEST when the
first packet is transmitted.
RXRPC_CALL_CLIENT_AWAIT_REPLY is then narrowed in scope to indicate
that all Tx packets have been ACK'd and we're now waiting for the
reply to be received.
(2) As per Wyatt Feng's original patch[1], the ACKALL handler then checks
that the call state is one in which there might be stuff in the Tx
buffer to ACK, but now this includes AWAIT_ACK rather than
AWAIT_REPLY. ACKALL packets are ignored if received in the wrong
state.
Note that unlike Wyatt Feng's patch, it's no longer necessary to check
to see if the Tx buffer exists as this the state set now covers this.
(3) Make the ACKALL handler use call->tx_transmitted rather than
call->tx_top as the former is explicitly the highest packet seq number
transmitted, whereas the latter has a looser definition.
Thanks to Jeffrey Altman for a description of the history of the ACKALL
packet[1].
Fixes:
|
||
|
Linus Torvalds
|
a142da0b2d |
block-7.2-20260625
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Merge tag 'block-7.2-20260625' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- blk-cgroup locking rework and fixes:
- fix a use-after-free in __blkcg_rstat_flush()
- defer freeing policy data until after an RCU grace period
- defer the blkcg css_put until the blkg is unlinked from
the queue
- unwind the queue_lock nesting under RCU / blkcg->lock
across the lookup, create, associate and destroy paths
- NVMe fixes via Keith:
- Fix a crash and memory leak during invalid cdev teardown,
and related cdev cleanups (Maurizio, John)
- nvmet fixes: handle TCP_CLOSING in the tcp state_change
handler, reject short AUTH_RECEIVE buffers, handle inline
data with a nonzero offset in rdma, fix an sq refcount leak,
and allocate ana_state with the port (Maurizio, Michael,
Bryam, Wentao, Rosen)
- nvme-fc fix to not cancel requests on an IO target before it
is initialized (Mohamed)
- nvme-apple fix to prevent shared tags across queues on Apple
A11 (Nick)
- Various smaller fixes and cleanups (John)
- MD fixes via Yu Kuai:
- raid1/raid10 fixes for writes_pending and barrier reference
leaks on write and discard failures, plus REQ_NOWAIT handling
fixes (Abd-Alrhman)
- raid5 discard accounting and validation, and a batch of fixes
for stripe batch races (Yu Kuai, Chen)
- Protect raid1 head_position during read balancing (Chen)
- block bio-integrity fixes: correct an error injection static key
decrement, fix GFP flag confusion in bio_integrity_alloc_buf(), and
handle REQ_OP_ZONE_APPEND in __bio_integrity_action() (Christoph)
- Fixes for bio_iov_iter_bounce_write(): revert the iov_iter after a
short copy, and respect the iov_iter nofault flag (Qu)
- Invalidate the cached plug timestamp after a task switch, and clear
PF_BLOCK_TS in copy_process() (Usama)
- Fix the IORING_URING_CMD_REISSUE flags check in blkdev_uring_cmd()
(Yitang)
- Remove a redundant plug in __submit_bio() (Wen)
- Don't warn when reclassifying a busy socket lock in nbd (Deepanshu)
* tag 'block-7.2-20260625' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (45 commits)
block: handle REQ_OP_ZONE_APPEND in __bio_integrity_action
block: fix GFP_ flags confusion in bio_integrity_alloc_buf
block, bfq: don't grab queue_lock to initialize bfq
mm/page_io: don't nest queue_lock under rcu in bio_associate_blkg_from_page()
blk-cgroup: don't nest queue_lock under blkcg->lock in blkcg_destroy_blkgs()
blk-cgroup: don't nest queue_lock under rcu in bio_associate_blkg()
blk-cgroup: don't nest queue_lock under rcu in blkg_lookup_create()
blk-cgroup: don't nest queue_lock under rcu in blkcg_print_blkgs()
blk-cgroup: delay freeing policy data after rcu grace period
blk-cgroup: protect iterating blkgs with blkcg->lock in blkcg_print_stat()
md/raid5: avoid R5_Overlap races while breaking stripe batches
md/raid5: use stripe state snapshot in break_stripe_batch_list()
blk-cgroup: defer blkcg css_put until blkg is unlinked from queue
blk-cgroup: fix UAF in __blkcg_rstat_flush()
block, bfq: protect async queue reset with blkcg locks
nbd: don't warn when reclassifying a busy socket lock
block: fix incorrect error injection static key decrement
md/raid5: let stripe batch bm_seq comparison wrap-safe
md/raid1: protect head_position for read balance
md/raid1: free r1_bio when REQ_NOWAIT is set and read would block on retry
...
|
||
|
Linus Torvalds
|
c58ddac1aa |
io_uring-7.2-20260625
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmo9GAwQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpoQ5D/9yn5dVqZLzqshu/sXJ3uw8usm+u+wvinc1 l6Lp2Q5sfAtmN+nGIZJvwRGqpglw4RRKxiZVHm2yGJ79g3HJIAIgcmlBLtI7HwZ0 foaKhaYB2hvEr6E/hpc0gL3OcRuc3cYjtWu9TsA3OOU4yf9vt9JehHoqlll0SOju a+0d7EJJ0HaEdi52qhMPhgiWaLfWfD5UGKkVZZTn8JfLyli8Mvn18zcmdSJ82WVp 1CSaquc02meIKUEGruB2T0pQe1Nnk20trP3rosGzc54h501W81hB2vZIVRi7lq5S m4jgDM+xp/H31JXoelz2VXXXWEg+wxuB2u8WsVuD2yjJc5HFD/S5NKWOJ4oKbae/ A/5xujtkOLPrVeEZmoP/pvAZbEbjpRxw7hwhKWQeed5ir82TgV0MRoiBMsYBpKW8 xfLAn/aJiU0O6F0xcftOsMibWLR40raIk1+OdoWm+JWFELzcF03bQ/875zqbFu9h /7EFhYWgMW8mvn+/gH5IiN04YxdWu13RsWHi93didxxeCRN8YGgJgH8ysyIhE5O6 Tbcdu0ye0NY4O0JuWVrxowHOno5MewUO7SWUbBOEOsrn8Xc4Bl3oFRbIYuwph5Jz rhABOf5Rkyt7ypOV8PWDwroTj3IAUq02HivsesRMxbcEEM/cgvIcse19qAIo+dGW LkIJCI+H3Q== =cmtx -----END PGP SIGNATURE----- Merge tag 'io_uring-7.2-20260625' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux Pull io_uring fixes from Jens Axboe: - Fix a file reference leak in the nop opcode when used with IOSQE_FIXED_FILE - Preserve the SQ array entries when resizing the ring via the register path - Preserve the partial result for an iopoll request rather than overwriting it - Don't audit log IORING_OP_RECV_ZC - Bound io_pin_pages() by the page array byte size in the memmap path - Follow-up cleanup to the task_work mpscq conversion, getting rid of the now-unnecessary tw_pending tracking for the !DEFER_TASKRUN path - Switch a system_unbound_wq user over to system_dfl_wq * tag 'io_uring-7.2-20260625' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: io_uring/memmap: bound io_pin_pages() by page array byte size io_uring: Use system_dfl_wq instead of system_unbound_wq io_uring/register: preserve SQ array entries on resize io_uring, audit: don't log IORING_OP_RECV_ZC io_uring: get rid of tw_pending for !DEFER task work io_uring/rw: preserve partial result for iopoll io_uring/nop: fix file reference leak with IOSQE_FIXED_FILE |
||
|
Linus Torvalds
|
962528fef9 |
gpio fixes for v7.2-rc1
- fix locking context with shared GPIOs in gpio-tegra - fix IRQ domain leak in error path in gpio-davinci - fix returning a potentially uninitialized integer in gpiochip_set_multiple() - use raw spinlock in gpio-eic-sprd and gpio-sch to address locking context issues - bail out of probe() if registering the GPIO chip fails in gpio-mlxbf3 - fix varible type for storing the "ngpios" property in gpio-pisosr - fix out-of-bounds pin access in GPIO ACPI - make GPIO ACPI core only trigger interrupts on boot that are marked as ActiveBoth - fix kerneldoc in gpio-tb10x - reference the real software node of the cs5535 GPIO controller in Geode board file -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEkeUTLeW1Rh17omX8BZ0uy/82hMMFAmo86vUACgkQBZ0uy/82 hMNNWRAAmZmRGrQtGsl50IOsZBgdONYapPftkk36rAJ7JKfxIAnO1ebcU+GjHve5 0F1D12Oz8mhrPnpGXm9im5msrwzVJtO6BGiQUqz8YvoajTDEqzCcOkDPNMbkseob 3L/XEzsz6MWtc4JvEyx6sFLCsIr2z/uzitX8nq+9KGkeC1PCEQ7zROLuoTxGcMQe 33nftgrJ2Ch+NP7QYDayI7imB+y7j01jQgfNuhsdwcqPam9CAJYX/hBkke8WyaIm c84u9fXEto+u3CIgK3zxLDkzodSDWw+8zPtwEYV7QgyAZyp7rXEEkbOJLxQCMiGK puJUDLCt+3jCAp6GjORewrPysReR27zn0KGaL70OKObKvIJ4tDEHnPI/GdTsUEOh n9/bZkF8eXOfT3RQV5ezdQgLrt0+/J3lM44nVkx3bno2OXumXXIW7+8frvhFy9TB C5Pn638XUPAPdlHiZlazLbJzQnchNPqH3wu0Hfcwrid+43byrb/lidtT6e6cmezl l+AdqV3ppZcVJlW6ORLvIk1UT7JNsE7+DHL8/8XWLsLZrtjG8aotVMBpxAqgsl1s adbJ3q96C4P27Zz93D7qyR/zopqRBa2BA+F3j8PDQOzuSO0Ps3y3kyIJH9OCEnLY ztyyuMH3tXFkkq9zStbe66VlMpEMMW8YZyHx6jIyc7/gVYnK4dk= =53+g -----END PGP SIGNATURE----- Merge tag 'gpio-fixes-for-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - fix locking context with shared GPIOs in gpio-tegra - fix IRQ domain leak in error path in gpio-davinci - fix returning a potentially uninitialized integer in gpiochip_set_multiple() - use raw spinlock in gpio-eic-sprd and gpio-sch to address locking context issues - bail out of probe() if registering the GPIO chip fails in gpio-mlxbf3 - fix varible type for storing the "ngpios" property in gpio-pisosr - fix out-of-bounds pin access in GPIO ACPI - make GPIO ACPI core only trigger interrupts on boot that are marked as ActiveBoth - fix kerneldoc in gpio-tb10x - reference the real software node of the cs5535 GPIO controller in Geode board file * tag 'gpio-fixes-for-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: davinci: fix IRQ domain leak on devm_kzalloc failure gpio: tegra: do not call pinctrl for GPIO direction gpio: tb10x: fix struct tb10x_gpio kernel-doc gpiolib: initialize return value in gpiochip_set_multiple() x86/platform/geode: reference the real node of the cs5535 GPIO controller gpio: eic-sprd: use raw_spinlock_t in the irq startup path gpio: sch: use raw_spinlock_t in the irq startup path gpiolib: acpi: Prevent out-of-bounds pin access in OperationRegion handler gpiolib: acpi: Add robust bounds-checking for GPIO pin resources gpio: mlxbf3: fail probe if gpiochip registration fails gpio: pisosr: Read "ngpios" as u32 gpiolib: acpi: Only trigger ActiveBoth interrupts on boot |
||
|
Linus Torvalds
|
ec85be724c |
power sequencing fixes for v7.2-rc1
- fix an ABBA deadlock in pwrseq unregister path - fix a use-after-free bug in pwrseq core - sort PCI device IDs in ascending order in pwrseq-pcie-m2 -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEkeUTLeW1Rh17omX8BZ0uy/82hMMFAmo863gACgkQBZ0uy/82 hMMNng//TuH8CTmCq7qinR7A1lHyCf+TbJSU5b1VnuP0XfYrYWU/nITcrrMEeKyx 4otTY0BgaRcxLqQazqm5a7zPopwqVuILuJbOZbim2axb04ctfL8KCKLDaAbYn8OJ dzQ7K1Sn7FSU2aK9XDuEIepviA6oaRwj9hTT2hfhNoO9l9gfKzhYDOXe089FBFAd qW6ucH4D/9ov2txaCD4+38xksIhyIhcBI4nwT1N/tIVs5S+JuxDI3MD6kHitVOVt B0H1Mt1eXAWFYfVBSoanTMwrXLsnXgn8FXLlki7vq9D83IzsYVFLk14cSP00s6Du +FwhLm/7xES4qDm8zTyj3I51U5ABCfYMqA+M2RrfEpXkj/Lfn4DrVVJPJVM51RrM CQDZ4LTbC+tmOFWsambtU10zCVZqgzhvtrPziong79Qy1wXV4oHOZ/exn2rOnABz 9f7Ep3A4lBMojXDTL1ZpKrqitFTiCrEEVWlZSOCLWYdZ+Y4x1ARAhjgvWhXzr9jf 3KrJZ5XiZTi5Gt3sqVP1T4JUlVEJ3czweImBIA5MsNsmQMUIsjwJafyGJ/AO7vWf KUZa3Gvln+HNBHlLv/SaS2WB/JJbq809uxFfk8ONu/ywgzgLG+eqvSltLC4Wa6bj G7oSbhvW4kHCSgCnVOroeGMakflGTdkQGaCs1/wGvFeLNQGqsY0= =cg0c -----END PGP SIGNATURE----- Merge tag 'pwrseq-fixes-for-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull power sequencing fixes from Bartosz Golaszewski: - fix an ABBA deadlock in pwrseq unregister path - fix a use-after-free bug in pwrseq core - sort PCI device IDs in ascending order in pwrseq-pcie-m2 * tag 'pwrseq-fixes-for-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: power: sequencing: fix ABBA deadlock in pwrseq_device_unregister() power: sequencing: pcie-m2: Sort PCI device IDs in ascending order pwrseq: core: fix use-after-free in pwrseq_debugfs_seq_next() |
||
|
Jakub Kicinski
|
b78f348d4c |
Merge branch 'net-hns3-fix-configuration-deadlocks-and-refactor-link-setup'
Jijie Shao says: ==================== net: hns3: fix configuration deadlocks and refactor link setup This patch series addresses a sequence of link configuration deadlocks and parameter contamination issues in the hns3 network driver, which typically occur during hardware resets or driver initialization under specific user-configured scenarios. The bugs root from asynchronous discrepancies between the MAC state machine and cached user requests during sudden hardware resets, leading to invalid parameter combos or frozen registers. ==================== Link: https://patch.msgid.link/20260624141319.271439-1-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Shuaisong Yang
|
d9d349c4e8 |
net: hns3: differentiate autoneg default values between copper and fiber
Fix a link loss issue during driver initialization on optical ports
connected to forced-mode (non-autoneg) remote switches.
Previously, during driver probe or initialization, hclge_configure()
blindly hardcoded hdev->hw.mac.req_autoneg to AUTONEG_ENABLE for all
media types. While this is necessary for copper (BASE-T) ports to
establish a link, many high-speed optical (fiber) ports in data
centers are connected to switches running in forced mode (fixed speed,
autoneg disabled). Forcing autoneg on these optical ports during
initialization causes a permanent link failure since the remote end
refuses to respond to autoneg pulses.
Fix this by implementing media-type differentiated initialization in
hclge_init_ae_dev(). Copper ports continue to default to
AUTONEG_ENABLE, while optical ports strictly inherit the preset
autoneg status pre-configured by the firmware (hdev->hw.mac.autoneg),
preserving native compatibility with forced-mode network environments.
Fixes:
|
||
|
Shuaisong Yang
|
c711f6d1ce |
net: hns3: fix permanent link down deadlock after reset
Fix a critical race condition deadlock where the network interface
remains permanently Link Down after a hardware reset under specific
ethtool sequences.
This issue exclusively manifests in firmware-controlled PHY topologies
where the driver relies on the IMP firmware to arbitrate link parameters.
Standard devices driven by the kernel's native PHY_LIB are unaffected.
The deadlock occurs via the following path:
1. User disables autoneg and forces an unmatched speed, forcing link
down: `ethtool -s ethx autoneg off speed 10 duplex full`
2. User re-enables autoneg: `ethtool -s ethx autoneg on`. The netdev
stack passes cmd->base.speed as SPEED_UNKNOWN (0xffffffff).
3. Driver saves req_autoneg=1, but before the interface can link up,
a hardware reset is triggered.
4. During reset recovery, MAC init reads the un-synchronized runtime
state mac.autoneg (which is still 0/OFF), misinterprets it as
forced mode, and pushes the cached SPEED_UNKNOWN into the hardware
registers, causing the MAC firmware state machine to freeze.
Meanwhile, PHY init reads req_autoneg=1 and enables PHY autoneg.
Since the MAC is frozen with 0xffffffff and PHY is running autoneg,
they mismatch permanently.
Fix this by:
1. Intercepting SPEED_UNKNOWN/DUPLEX_UNKNOWN in
hclge_set_phy_link_ksettings() and hclge_cfg_mac_speed_dup_h() to
prevent it from corrupting the driver's cached valid configuration.
2. Save req_autoneg in hclge_set_autoneg().
3. Aligning the state judgment in hclge_set_autoneg_speed_dup() to use
req_autoneg instead of the un-synchronized runtime mac.autoneg,
ensuring both MAC and PHY consistently enter the autoneg branch to
eliminate configuration discrepancies during reset recovery.
Fixes:
|
||
|
Shuaisong Yang
|
c01f6e6bdc |
net: hns3: refactor MAC autoneg and speed configuration
Extract the MAC autoneg and speed/duplex/lane configuration logic out of hclge_mac_init() and encapsulate it into a new dedicated helper function hclge_set_autoneg_speed_dup(). In the init path (hclge_init_ae_dev), this helper is now called after hclge_update_port_info() so that firmware-reported autoneg values are already populated before applying the link configuration. Introduce a separate req_lane_num field in struct hclge_mac to isolate the user-requested lane count from mac.lane_num, which firmware may overwrite via hclge_get_sfp_info() with stale values from a prior link lifecycle (e.g., lane_num=4 from 100G). During probe, req_lane_num is initialized to 0, which instructs firmware to auto-select the correct lane count for the current speed, rather than reusing the firmware- reported mac.lane_num that may be inconsistent with the target speed. This prevents probe failures from mismatched (speed, lane_num) pairs. In the reset path (hclge_reset_ae_dev), it runs immediately after hclge_mac_init(), using the previously cached req_* values to restore the link without re-querying firmware. Signed-off-by: Shuaisong Yang <yangshuaisong@h-partners.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Link: https://patch.msgid.link/20260624141319.271439-3-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
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Shuaisong Yang
|
d77e98f8b2 |
net: hns3: unify copper port ksettings configuration path
Refactor hns3_set_link_ksettings() and hclge_set_phy_link_ksettings() to unify the configuration path for copper ports. Previously, netdevs with a native kernel phy attached bypassed the main MAC parameter caching logic and returned early via phy_ethtool_ksettings_set(). This prevented the driver from updating hdev->hw.mac.req_xxx variables for kernel PHY setups, leaving them out-of-sync during reset recovery. Clean this up by routing all copper port configurations through ops->set_phy_link_ksettings(), and perform driver-level or kernel-level PHY arbitration inside hclge_set_phy_link_ksettings() via hnae3_dev_phy_imp_supported(). This ensures that the user's intended link profiles (req_speed, req_duplex, req_autoneg) are uniformly recorded across all copper and fiber deployment topologies, laying the groundwork for stable reset recovery. For copper ports where neither IMP firmware nor a kernel PHY is available (e.g. PHY_INEXISTENT), hclge_set_phy_link_ksettings() returns -ENODEV. In hns3_set_link_ksettings(), this is caught so the configuration falls through to the existing MAC-level path (check_ksettings_param -> cfg_mac_speed_dup_h), preserving compatibility with PHY-less copper deployments. Signed-off-by: Shuaisong Yang <yangshuaisong@h-partners.com> Signed-off-by: Jijie Shao <shaojijie@huawei.com> Link: https://patch.msgid.link/20260624141319.271439-2-shaojijie@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
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Shradha Gupta
|
5316394b17 |
net: mana: Optimize irq affinity for low vcpu configs
Before the commit |
||
|
Linus Torvalds
|
da07894d1d |
A handful of late-arriving docs fixes, along with one document update
that fell through the cracks before. -----BEGIN PGP SIGNATURE----- iQFDBAABCgAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmo9JLAPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5Y78sH/jWxQF61bEtdwa4RbO8xw/4j2HK2GPguynK+ ctdYQE0V6lLwcsPyvu5IPoHXXJ+z3RAyNkRu/n6/LTIFGQ0Z4lXOyu3fjVYhC2Tw QXVWp0G1Wb5gHVdW9g2KwXWv2U/9Z2HIftr3RlXbr+Zt8aIn+A4kqsjuQI5y7Dlu 4aTRI0xjeRhSZHUT1dwlaqV9vH3MB/lgwmnbHCKF2uxuRK3K/1HfNppnPdBkmKyA bru70pdw7PR+m87H+9sCr99T4YfrLFGRdOdM/pO+BsmmuSeC8SIWKaAHKWQJAn1A WGZdnuiZON8jV9RpwRK7BSeW/k7QxjO9TYxM96xBLQQuAo2REec= =jpJf -----END PGP SIGNATURE----- Merge tag 'docs-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux Pull more documentation updates from Jonathan Corbet: "A handful of late-arriving docs fixes, along with one document update that fell through the cracks before" * tag 'docs-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: docs: tools: Fix typo 'ackward' to 'awkward' in unittest.rst kdoc: xforms: ignore special static/inline macros kdoc: xforms_lists: handle DECLARE_PER_CPU() in kernel-doc MAINTAINERS: Fix regex for kdoc docs: kgdb: Fix path of driver options Documentation: tracing: fix typo in events documentation Docs/driver-api/uio-howto: document mmap_prepare callback docs/mm: clarify that we are not looking for LLM generated content kernel-doc: xforms: support __SYSFS_FUNCTION_ALTERNATIVE() |
||
|
Linus Torvalds
|
6cc37b86f8 |
Second round of Kbuild changes for 7.2
- Link host programs with ld.lld when $(LLVM) is set to match user's expectations that LLVM will be used exclusively during the build process - Fix modpost warnings from static variable name promotion that can happen more aggressively with the recently merged distributed ThinLTO support - Add an optional warning for user-supplied Kconfig values that changed after processing, such as out of range values or options that have incorrect / missing dependencies Signed-off-by: Nathan Chancellor <nathan@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQR74yXHMTGczQHYypIdayaRccAalgUCajxdqwAKCRAdayaRccAa lqp7AQDoaDr7cA9voR/vx+mC2zumBEnG1CAhMEIr4zPsPjyF5AD9GA5hXQc5DR68 wMqB8Na5lB43GjJQEJxFwkPX1l8BzQU= =Ughj -----END PGP SIGNATURE----- Merge tag 'kbuild-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux Pull more Kbuild updates from Nathan Chancellor: - Link host programs with ld.lld when $(LLVM) is set to match user's expectations that LLVM will be used exclusively during the build process - Fix modpost warnings from static variable name promotion that can happen more aggressively with the recently merged distributed ThinLTO support - Add an optional warning for user-supplied Kconfig values that changed after processing, such as out of range values or options that have incorrect / missing dependencies * tag 'kbuild-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: kconfig: add optional warnings for changed input values modpost: Ignore Clang LTO suffixes in symbol matching kbuild: Use ld.lld for linking host programs when LLVM is set |
||
|
Nirmoy Das
|
3e52f56875 |
selftests: tls: size splice_short pipe by page size
splice_short grows its pipe with (MAX_FRAGS + 1) * 0x1000 so it can
queue one short vmsplice() buffer for each fragment before draining the
pipe. That assumes 4K pipe buffers.
On 64K-page kernels the request is rounded to 262144 bytes, which
provides only four pipe buffers. The fifth one-byte vmsplice() blocks in
pipe_wait_writable and the test times out before it reaches the TLS path.
Request enough bytes for the same number of pipe buffers using the
runtime page size, and assert that the kernel granted at least that much.
If an unprivileged run cannot raise the pipe above the system
pipe-max-size limit, skip the test because it cannot exercise the
intended path.
Fixes:
|
||
|
Linus Torvalds
|
504c806528 |
ipmi: lots of little tweaks
Nothing huge, the biggest issue was a possible refcount underflow that could cause a memory leak in some situations. Otherwise, fixing formatting and style things and some docs typos. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE/Q1c5nzg9ZpmiCaGYfOMkJGb/4EFAmo8Kd8ACgkQYfOMkJGb /4EJyxAAkY1swdh9aPxQF7vUsjsHpA5ZOYhvJSFjoVedsIzEAjFZ6o4z3kT1mMIk m/1i//FuWz9ltZjVoG/etbDbAITG+hsBdmYPNZk5ymg4TJKYdM0vZkNNngyz9RSK xvoqK6hVAlRIg76EJLRNqcvyKfXlMDfnvlv7AlfvoESd1++olbANwgB1lcQAAPql q0fkIdKsaSR/UH8AARD7U9Zh/UMcCiaNFiFanERb+La6GQnZ7/vwmkIsFMUxvlM9 On1+ocdfUAgJ/G8XV4JpQNxF8LurCVByCIhlIvhd7AKi1kOeMj3pLBzpqzscq8Oi uxIdsi1TEQyJXO5N+xvWd36HOLhKL6U7coDSRoAWdSVeSDj3HrowmIGIh/cngeDJ f3YaXKm3mJHTmGcd+bvWEF4/xX0sPdybgSsrP/PHlMmy5LZLJteRay8ZsRHluKkh XMvTwUpVjTm5YMA3gbQVjvRILrI+2fQPYx9FVRKz9fFis32lvkUhbhc80ir4jXsw /t/2qq5BMmbqx4RT8drejVZHafWIE/Qdz7QwFf0FB8luqkKjNEir73AefZjnoy5b bD8e5BM/zm1bysZzoOV5r8dDIEtn7wCVUmLiQSIwF50epdy8ue2yIB4Q91ewMdws PvyHuc/g40/WPmGwvp4MZ2Gu2+/v9jaaNP13lgPu6oVUKwgNmBo= =DWx/ -----END PGP SIGNATURE----- Merge tag 'for-linus-7.2-1' of https://github.com/cminyard/linux-ipmi Pull ipmi updates from Corey Minyard: "Lots of little tweaks. Nothing huge, the biggest issue was a possible refcount underflow that could cause a memory leak in some situations. Otherwise, fixing formatting and style things and some docs typos" * tag 'for-linus-7.2-1' of https://github.com/cminyard/linux-ipmi: docs: ipmi: Fix path of the "hotmod" module parameter ipmi: Drop unused assignment of platform_device_id driver data ipmi: si: Use platform_get_irq_optional() to retrieve interrupt ipmi: fix refcount leak in i_ipmi_request() ipmi:ssif: Drop unused assignment of platform_device_id driver data ipmi: Fix user refcount underflow in event delivery ipmi: Use named initializers for struct i2c_device_id ipmi: Use LIST_HEAD() to initialize on stack list head ipmi:kcs: Reduce the number of retries |
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Haoxiang Li
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483be61b4a |
net: sparx5: unregister blocking notifier on init failure
sparx5_register_notifier_blocks() registers the switchdev blocking
notifier before allocating the ordered workqueue. If the workqueue
allocation fails, the error path unregisters the switchdev and netdevice
notifiers, but leaves the blocking notifier registered.
Add a separate error label for the workqueue allocation failure path and
unregister the switchdev blocking notifier there.
Fixes:
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Jakub Kicinski
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106f6b1dfa |
Merge branch 'tipc-syzbot-related-fixes'
Eric Dumazet says: ==================== tipc: syzbot related fixes First patch fixes a recent syzbot report. Second patch is inspired by numerous syzbot soft lockup reports with RTNL pressure. ==================== Link: https://patch.msgid.link/20260623173030.2925059-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Eric Dumazet
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c1481c94e7 |
tipc: avoid busy looping in tipc_exit_net()
Blamed commit introduced a busy-wait loop in tipc_exit_net()
to wait for pending UDP bearer cleanup works to complete:
while (atomic_read(&tn->wq_count))
cond_resched();
This loop can busy-wait for a long time if cond_resched() is a NOP. This
typically happens if the netns exit is executed by a high priority task,
or under kernels configured without preemption (CONFIG_PREEMPT_NONE). In
such cases, it wastes CPU cycles and can lead to soft lockups.
Fix this by replacing the busy loop with wait_var_event(), allowing the
thread to sleep properly until the work queue count reaches zero.
Accordingly, update cleanup_bearer() to use atomic_dec_and_test() and
wake_up_var() to wake up the waiter when the count drops to zero.
This uses the global wait queue hash table, avoiding the need to bloat
struct tipc_net with a wait_queue_head_t. The atomic_dec_and_test()
provides the necessary memory barrier to ensure the wakeup is not missed.
Fixes:
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Eric Dumazet
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7116764ca5 |
tipc: fix UAF in cleanup_bearer() due to premature dst_cache_destroy()
TIPC UDP media bearer teardown calls dst_cache_destroy() on its
replicast caches before calling synchronize_net() to wait for
concurrent RCU readers (transmitters) to finish:
static void cleanup_bearer(struct work_struct *work)
{
...
list_for_each_entry_safe(rcast, tmp, &ub->rcast.list, list) {
dst_cache_destroy(&rcast->dst_cache);
list_del_rcu(&rcast->list);
kfree_rcu(rcast, rcu);
}
...
dst_cache_destroy(&ub->rcast.dst_cache);
udp_tunnel_sock_release(ub->sk);
synchronize_net();
...
}
This is highly buggy because dst_cache_destroy() immediately frees the
per-CPU cache memory (free_percpu()) and releases the cached dst
entries without any synchronization.
If a concurrent transmitter (e.g., tipc_udp_xmit()) is running on another
CPU under RCU protection, it can call dst_cache_get() concurrently,
leading to:
1. Use-After-Free on the per-CPU cache pointer itself (crash).
2. "rcuref - imbalanced put()" warning if it attempts to release a
dst that was concurrently released by dst_cache_destroy().
Furthermore, calling kfree(ub) immediately after synchronize_net() without
closing the socket first (or waiting after closing it) leaves a window
where a concurrent receiver (tipc_udp_recv()) could start after
synchronize_net(), access ub, and suffer a UAF when kfree(ub) runs.
To fix this, we must defer dst_cache_destroy() and kfree(ub) until after
we have ensured that no more readers can see the bearer/socket and all
existing readers have finished:
1. Defer rcast entry destruction (both dst_cache_destroy() and kfree())
to an RCU callback using call_rcu_hurry().
Using call_rcu_hurry() ensures the dst entries are released quickly.
2. Release the bearer socket using udp_tunnel_sock_release() (stops
new receive readers).
3. Call synchronize_net() to wait for all outstanding RCU readers
(both transmit and receive) to finish.
4. Now that it is safe, call dst_cache_destroy() on the main bearer
cache, and free ub.
Note: 3) and 4) can be changed later in net-next to also use
call_rcu_hurry() and get rid of the synchronize_net() latency.
Fixes:
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Haoxiang Li
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36323f54cd |
octeontx2-af: Free BPID bitmap on setup failure
nix_setup_bpids() allocates bp->bpids with rvu_alloc_bitmap(), which uses
a plain kcalloc(). If any of the following devm_kcalloc() allocations for
the BPID mapping arrays fails, the function returns without freeing the
bitmap. Free the BPID bitmap before returning from those error paths.
Fixes:
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Krzysztof Kozlowski
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efd7fb21ba |
net: ethernet: qualcomm: ppe: Demote from supported and fix maintainer addresses
Emails to the maintainer of Qualcomm PPE Ethernet driver (Luo Jie <quic_luoj@quicinc.com>) bounce permanently (full mailbox), because the "quicinc.com" addresses were deprecated for public work. All Qualcomm contributors are aware of that and were asked to fix their addresses. Driver is not supported - in terms of how netdev understands supported commitment - if maintainer does not care to receive the patches for its code, so demote it to "maintained" to reflect true status. Fix all occurences of Luo Jie email address to preferred and working domain. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Acked-by: Luo Jie <jie.luo@oss.qualcomm.com> Link: https://patch.msgid.link/20260623073307.36483-2-krzysztof.kozlowski@oss.qualcomm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Wei Fang
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5da6553779 |
net: enetc: fix potential divide-by-zero when num_vsi is zero
For i.MX94 series, all the standalone ENETCs do not support SR-IOV, so
pf->caps.num_vsi is zero. This leads to a divide-by-zero in
enetc4_default_rings_allocation() when distributing rings among PF and
VFs.
Division by zero is undefined behavior in C. On ARM64, the UDIV/SDIV
instructions silently return zero rather than raising an exception, so
the issue does not cause a visible crash. However, relying on this
behavior is incorrect and poses a cross-platform compatibility risk.
Add an explicit check for num_vsi == 0 and return early after the PF's
rings have been configured.
Fixes:
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Rob Herring (Arm)
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14eb1d2c03 |
dt-bindings: net: renesas,ether: Drop example "ethernet-phy-ieee802.3-c22" fallback
Fix the Micrel PHY in the example which shouldn't have the
fallback "ethernet-phy-ieee802.3-c22" compatible:
Documentation/devicetree/bindings/net/renesas,ether.example.dtb: ethernet-phy@1 \
(ethernet-phy-id0022.1537): compatible: ['ethernet-phy-id0022.1537', 'ethernet-phy-ieee802.3-c22'] is too long
from schema $id: http://devicetree.org/schemas/net/micrel.yaml
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Fixes:
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