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v7.2-rc7
1464913 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
a84c804215 |
SCSI fixes on 20260802
No core changes. The largest driver fix is the reversion of threaded interrupt handlers in UFS and the next is the resume deadlock fix in hisi_sas which extends into libsas. Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> -----BEGIN PGP SIGNATURE----- iLgEABMIAGAWIQTnYEDbdso9F2cI+arnQslM7pishQUCam86+xsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDImHGphbWVzLmJvdHRvbWxleUBoYW5zZW5wYXJ0bmVy c2hpcC5jb20ACgkQ50LJTO6YrIVcnwD/QWD/DCvLd533SY0vE2fZYVYnUVi3uzAy OGkbmxKtCSABAO/djRxNN1CTDtVXnhUhp/VLn0niXfy4jLmCkoWpnD2N =ERuj -----END PGP SIGNATURE----- Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley" "No core changes. The largest driver fix is the reversion of threaded interrupt handlers in UFS and the next is the resume deadlock fix in hisi_sas which extends into libsas" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: core: Initialize hba->rpmbs list in ufshcd scsi: mpi3mr: Fix potential deadlock in mpi3mr_fault_uevent_emit scsi: target: Clear cmd_cnt when initial counter enrollment fails scsi: zfcp: Fix memory leak during adapter release by destroying gid_pn_req scsi: ufs: core: Revert "Delegate the interrupt service routine to a threaded IRQ handler" scsi: ufs: core: Cancel RTC work in active-active suspend scsi: scsi_debug: Fix REPORT ZONES alloc_len underflow OOB write scsi: target: iblock: Fix wrong PR ops NULL check for PREEMPT/RELEASE scsi: ufs: dt-bindings: Add missing mcq reg for qcom,sa8255p-ufshc scsi: libsas: Fix HA resume deadlock and hisi_sas disk-wake race scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer scsi: libiscsi: Fix stale-data leak into the SCSI sense buffer |
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|
Linus Torvalds
|
49c9f4657b |
dmaengine fixes for v7.2
Bunch of driver fixes for: - switchtec fix for register programming - sun6i descriptor reclaim fix - Couple of Intel idxd fixes for double free in error and setup failure - Qualcomm bam dma command element fix -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE+vs47OPLdNbVcHzyfBQHDyUjg0cFAmpuzYcACgkQfBQHDyUj g0evqg//ZOIvQV12d4eOp7JCzWgfb7uPi+fx6YpMQOxhML5OIwu1nX9tZ1eV6MZB 4G0lXPW0QhUFFzEpELp+odUJfXhgZkXaaw/yr0Km7fv1bUxKhPVvqVEHpT8EH5QT wivwL17ur8IzFEbjtCDNg2qoVCyzRufbDUcbEvZZFgpUaEnTrwFgfchLZZJm7Vkc fIaLbYN5Peq8AsRKw6TmAos0sOqEVvlfFDULtlKvkVcsheor3ZquIyLm0Czghp/+ BNFXVLxPG3sMJjeg2c/u8E/u2GTCGbuDvmIZFcWgds59YCkB/ETIwG9smfFNew38 mrTJfpGemqGkMx8T5x4e3yr7z2YX+7eBWBV5Js77rkpRw/Aq7iwW3emoTnIanr9c U3oJJCjrEpBLCKv2pNkWNo49vZbceUPCnNvsTcG9xjSFjKQEDHufLk9cQZbug125 iB1tmqJJigfKf818rh184PS5OY6puw4UaeEWfTG3APQif688xjlfxXBmXEDZPpqR TGAasuIsUOk6J+glOlkhNh9el3z+kyjFFdM+UZTr0TJQahc/+PVR+Zgk1VjluAwx 4LbEv1W+3scGELOIdZm5Kld4Mr12o2KfIEgFdlG3atlRRqyNGxnbKZ1xrSrsJ1o0 BjoqI7ZDe5IbljlJRm+tzpmtE4P/qH1LB3OHy0gFvbfSRYQ9x/4= =GT2Z -----END PGP SIGNATURE----- Merge tag 'dmaengine-fix-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine fixes from Vinod Koul: - switchtec fix for register programming - sun6i descriptor reclaim fix - Intel idxd fixes for double free in error and setup failure - Qualcomm bam dma command element fix * tag 'dmaengine-fix-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: dmaengine: qcom: bam_dma: Fix command element mask field for BAM v1.6.0+ dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open() dmaengine: idxd: fix double free of wq, engine, and group structs dmaengine: sun6i-dma: Fix reclaim descriptors while terminating DMA dmaengine: switchtec-dma: fix FIELD_GET misuse when programming SE threshold |
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Linus Torvalds
|
40814468ee |
phy fixes for 7.2
Couple of driver fixes
- Couple of zynqmp clock and pm error handling and SERDES scrambler
register handling
- Rockchip SSC spread fix
- Qualcomm musb return call fix
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Merge tag 'phy-fixes-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy fixes from Vinod Koul:
- fixes for zynqmp clock and pm error handling and SERDES scrambler
register handling
- Rockchip SSC spread fix
- Qualcomm musb return call fix
* tag 'phy-fixes-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: zynqmp: keep SERDES scrambler and 8b/10b enabled for USB
phy: zynqmp: use read-modify-write for SERDES scrambler bypass
phy: zynqmp: fix L0_TM_DISABLE_SCRAMBLE_ENCODER mask
phy: zynqmp: fix runtime PM leak on probe allocation failure
phy: zynqmp: fix clock error handling in xpsgtr_phy_init()
phy: rockchip: naneng-combphy: Always configure SSC spread direction
phy: qcom: m31-eusb2: Fix return value of init call
|
||
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Babanpreet Singh
|
f1a3a9946a |
counter: microchip-tcb-capture: Fix DT channel validation
mchp_tc_probe() reads the devicetree "reg" cell - a u32, per the API
contract of of_property_read_u32_index() - into a signed int, so the
bounds check "channel > 2" fails to reject cell values at or above
0x80000000: reinterpreted as a negative int, they compare below 2 and
pass validation.
A malformed devicetree can therefore drive a negative channel into the
ATMEL_TC_REG() offset arithmetic, making the driver access syscon
regmap offsets outside the TC block's register window, and into the
"t%d_clk" clock-name formatting, where it truncates clk_name (sized
for "t0_clk".."t2_clk").
Declare channel as u32, matching the API contract; the unsigned
comparison then rejects everything except channels 0..2. Adjust the
format specifier to %u accordingly, which also resolves the W=1
warning that exposed the gap:
microchip-tcb-capture.c:520:56: warning: '%d' directive output may
be truncated writing between 1 and 11 bytes into a region of size
6 [-Wformat-truncation=]
note: directive argument in the range [-2147483648, 2]
No behavior change for well-formed devicetrees: channels 0..2 take
identical paths before and after.
Fixes:
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|
Keno Fischer
|
6d4514ca9c |
futex: Prevent robust futex exit race some more
A robust futex unlock stores 0 over the whole futex value - wiping FUTEX_WAITERS - and wakes a single waiter. That wakeup is a one-shot notification: the protocol relies on its recipient to either acquire the futex (and eventually unlock while aware of the remaining contention) or re-arm FUTEX_WAITERS before sleeping again. If the woken waiter is killed before it can do either, the kernel must jump in and wake the next task down the line. This is a known complication of the futex protocol with a previous partial fix in commit |
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Chengfeng Ye
|
fdeba03fea
|
bpf: Fix netns reference imbalance in conntrack kfuncs
The opts argument of the BPF conntrack kfuncs can point to a shared
map value. __bpf_nf_ct_lookup() and __bpf_nf_ct_alloc_entry() read
opts->netns_id separately when acquiring and releasing the network
namespace reference.
The reference imbalance can occur as follows:
CPU 0 CPU 1
read opts->netns_id (-1)
skip get_net_ns_by_id()
write opts->netns_id (id)
read opts->netns_id (id)
put_net(net) /* no matching get */
The reverse transition leaks the reference. Repeating the unmatched put
can destroy a live namespace and crash later users.
The kernel reported:
Oops: general protection fault, probably for non-canonical address
KASAN: null-ptr-deref in range [0x00000000000000e8-0x00000000000000ef]
RIP: 0010:bpf_prog_test_run_xdp+0x52c/0x1700
Call Trace:
__sys_bpf+0x1662/0x50c0
__x64_sys_bpf+0x73/0xb0
do_syscall_64+0xf9/0x540
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Kernel panic - not syncing: Fatal exception
Snapshot every input field of opts with READ_ONCE() before validating or
using it. The netns_id snapshot keeps the namespace get/put pair
balanced, while the other snapshots keep the remaining options from
changing partway through an invocation. The individual reads can still
observe an inconsistent combination during a concurrent update, but each
selected field value remains stable for that invocation.
Fixes:
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Chengfeng Ye
|
a766247337
|
bpf, sockmap: Fix sk_redir use-after-free in send verdict
sk_psock_msg_verdict() takes a socket reference for psock->sk_redir.
tcp_bpf_send_verdict() copies that pointer while holding the source socket
lock, but does not take a reference for the local copy before dropping the
lock around tcp_bpf_sendmsg_redir().
When apply_bytes keeps the cached verdict active, another sendmsg() on the
same source socket can consume the remaining bytes and release the cached
reference while the first thread still holds only the raw local pointer:
CPU 0 CPU 1
sk_redir = psock->sk_redir
apply_bytes remains nonzero
release_sock(sk)
lock_sock(sk)
apply_bytes reaches zero
psock->sk_redir = NULL
release_sock(sk)
tcp_bpf_sendmsg_redir(sk_redir)
sock_put(sk_redir)
tcp_bpf_sendmsg_redir(sk_redir)
The final sock_put() can free sk_redir before CPU 0 dereferences it.
KASAN reported:
BUG: KASAN: slab-use-after-free in tcp_bpf_sendmsg_redir+0xf39/0x1020
Read of size 8 at addr ffff888108537090 by task poc/87
Call Trace:
tcp_bpf_sendmsg_redir+0xf39/0x1020
tcp_bpf_sendmsg+0x977/0x1a50
__sys_sendto+0x32c/0x3a0
__x64_sys_sendto+0xdb/0x1b0
Allocated by task 85:
sk_prot_alloc+0x56/0x210
sk_clone+0x6f/0x14b0
inet_csk_clone_lock+0x24/0x740
tcp_create_openreq_child+0x25/0x2710
tcp_v4_syn_recv_sock+0x10a/0xe00
Freed by task 0:
__kasan_slab_free+0x43/0x70
slab_free_after_rcu_debug+0xa6/0x1e0
rcu_core+0x50a/0x1850
Last potentially related work creation:
__sk_destruct+0x3da/0x540
sk_psock_destroy+0x81e/0xab0
process_one_work+0x63a/0x1070
Take a temporary socket reference while the source socket lock still
protects psock->sk_redir, and drop it after tcp_bpf_sendmsg_redir()
returns. This keeps each unlocked use independent of cached-verdict
ownership.
Fixes:
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Linus Torvalds
|
2d2338c93d |
i2c-fixes for v7.2-rc6
- amd-mp2: unregister callback if adapter registration fails - designware: defer probe until child GPIO controllers are bound - imx: - mark adapter suspended while hardware is powered down - fix stale slave pointer and shared IRQ registration race - stop slave timer before clearing slave pointer - iproc: reset controller if START_BUSY remains set after timeout - jz4780: cache clock rate to avoid clk_get_rate() deadlock - qcom-cci: rely on runtime PM helpers for system sleep - spacemit: request interrupt after clock initialization -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQScDfrjQa34uOld1VLaeAVmJtMtbgUCam2wKAAKCRDaeAVmJtMt bqfFAP0V1w4b6tyH2a2LUM3dpL83OjhGnMi1xsBO9fAybv0kWAD/aRICEDDENJPh SxD+DpQ7xH3inwBR+akLeqMAHfSfOgE= =M+Cd -----END PGP SIGNATURE----- Merge tag 'i2c-fixes-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux Pull i2c fixes from Andi Shyti: "A set of fixes across several host controller drivers. The largest part addresses three issues in the i.MX driver, while the remaining changes fix probe ordering, power management, timeout recovery and error handling. amd-mp2: - unregister callback if adapter registration fails designware: - defer probe until child GPIO controllers are bound imx: - mark adapter suspended while hardware is powered down - fix stale slave pointer and shared IRQ registration race - stop slave timer before clearing slave pointer iproc: - reset controller if START_BUSY remains set after timeout jz4780: - cache clock rate to avoid clk_get_rate() deadlock qcom-cci: - rely on runtime PM helpers for system sleep spacemit: - request interrupt after clock initialization" * tag 'i2c-fixes-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux: i2c: qcom-cci: drop custom suspend/resume and rely on runtime PM helpers i2c: imx: Cancel hrtimer before clearing slave pointer i2c: imx: Fix slave registration race and error handling i2c: iproc: reset bus after timeout if START_BUSY is stuck i2c: imx: mark I2C adapter when hardware is powered down i2c: designware: defer probe if child GpioInt controllers are not bound i2c: jz4780: Cache host clock rate at probe to prevent CCF prepare_lock deadlock i2c: amd-mp2: Unregister callback on adapter add failure i2c: spacemit: request IRQ after controller initialization |
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Lizhi Hou
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4a19f7ab59 |
accel/amdxdna: Fix locally exploitable BUG_ON in amdxdna_insert_pages()
In amdxdna_insert_pages(), vm_flags_mod() sets VM_MIXEDMAP and clears
VM_PFNMAP. If an unprivileged userspace process mmaps a non-imported GEM
object and then calls madvise(MADV_DONTNEED), the PTEs will be
successfully cleared because VM_MIXEDMAP allows this (unlike VM_PFNMAP).
When userspace subsequently accesses the memory, drm_gem_shmem_fault()
handles the page fault and attempts to map the backing shmem page via
vmf_insert_pfn() which calls vmf_insert_pfn_prot(). Because the backing
shmem page is normal system memory (pfn_valid(pfn) is true) and the VMA
now has VM_MIXEDMAP set, won't this predictably trigger the explicit
assertion BUG_ON((vma->vm_flags & VM_MIXEDMAP) && pfn_valid(pfn))
Fix by removing the vm_flags_mod() call and replacing the vm_insert_pages()
pre-population with the handle_mm_fault() loop that was already used for
the import (dma-buf) path.
Fixes:
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Linus Torvalds
|
02dc699f83 |
First round of Kbuild fixes for 7.2
- Fix regression with MO= when building out of tree kernel modules due to incorrectly overwriting build tree's Makefile - Avoid stripping .BTF sections from modules when building debug .rpm packages Signed-off-by: Nathan Chancellor <nathan@kernel.org> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQR74yXHMTGczQHYypIdayaRccAalgUCam1cngAKCRAdayaRccAa lt/FAQDqTsqzD4FKeeOUkyoIahT+l31Spa0VNUTMa+EwEv24WwEAjExf66Ch7rVe KRdLXdDUSRI8TZiDZeibf8kGx0i+PwQ= =1d+/ -----END PGP SIGNATURE----- Merge tag 'kbuild-fixes-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux Pull Kbuild fixes from Nathan Chancellor: - Fix regression with MO= when building out of tree kernel modules due to incorrectly overwriting build tree's Makefile - Avoid stripping .BTF sections from modules when building debug .rpm packages * tag 'kbuild-fixes-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: kbuild: rpm-pkg: Preserve BTF sections in kernel modules during debuginfo stripping kbuild: Stop modifying $(objtree)/Makefile when building oot-kmods oos |
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Linus Torvalds
|
2aa6a5e889 |
tracing fixes for v7.2:
- Reset dropped_count in mmio_reset_data() When mmio_reset_data() is called, it does not reset the dropped_count so that subsequent runs will have incorrect reporting. - Add NULL check for mmio_trace_array in logging functions The functions __trace_mmiotrace_rw() and __trace_mmiotrace_map() may have the 'tr' variable passed to it as NULL. But they both dereference it without checking if it is NULL first. - Check return value of __register_event() in trace_module_add_events() If __register_event() fails, the call after it (__add_event_to_tracers()) will create a file for it. If the module fails to load and its memory is freed, the file will still point to it and it will not be removed as the registering of the event did not complete. Only call __add_event_to_tracers() if the __register_event() was successful. - Fix false positive match in regex_match_full() The regex full matching uses a strncmp() to test against the match string and the value. It should not match if value is a prefix of the string to match. Check to make sure the length of the strings match before comparing. - Fix reader page read offset for remote buffers A page swapped in by __rb_get_reader_page_from_remote() retains its stale read offset, causing subsequent reads to skip events or read past valid data. - Fix memory leak of subbuf_ids in rb_allocate_cpu_buffer() Remote buffers allocate a subbuf_ids array. If the allocator function fails after it is allocated, it does not free it, resulting in a memory leak. -----BEGIN PGP SIGNATURE----- iIkEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCam1A0RQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qlW/AQDCpddDwAMwN80i3tn5uiqec9JLZT5I DR6G+0zEF9a5DAD2IxiD3gH/mPVZ3CdiqfElBqjc0Pq1dx414xmzXBv+CA== =GUpD -----END PGP SIGNATURE----- Merge tag 'trace-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Reset dropped_count in mmio_reset_data() When mmio_reset_data() is called, it does not reset the dropped_count so that subsequent runs will have incorrect reporting. - Add NULL check for mmio_trace_array in logging functions The functions __trace_mmiotrace_rw() and __trace_mmiotrace_map() may have the 'tr' variable passed to it as NULL. But they both dereference it without checking if it is NULL first. - Check return value of __register_event() in trace_module_add_events() If __register_event() fails, the __add_event_to_tracers() call after it will create a file for it. If the module fails to load and its memory is freed, the file will still point to it and it will not be removed as the registering of the event did not complete. Only call __add_event_to_tracers() if the __register_event() was successful. - Fix false positive match in regex_match_full() The regex full matching uses a strncmp() to test against the match string and the value. It should not match if value is a prefix of the string to match. Check to make sure the length of the strings match before comparing. - Fix reader page read offset for remote buffers A page swapped in by __rb_get_reader_page_from_remote() retains its stale read offset, causing subsequent reads to skip events or read past valid data. - Fix memory leak of subbuf_ids in rb_allocate_cpu_buffer() Remote buffers allocate a subbuf_ids array. If the allocator function fails after it is allocated, it does not free it, resulting in a memory leak. * tag 'trace-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Fix subbuf_ids memory leak in rb_allocate_cpu_buffer() error path ring-buffer: Fix reader page read offset for remote buffers tracing/filters: Fix false positive match in regex_match_full() tracing: Check return value of __register_event() in trace_module_add_events() tracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions tracing/mmiotrace: Reset dropped_count in mmio_reset_data() |
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Michael Guralnik
|
af39eb111c |
net/mlx5: fw_tracer, return NULL on create error
Tracer creation can fail by returning either NULL or ERR_PTR.
The return value is stored without a check on the device, and users
treat ERR_PTR and NULL the same way.
This also causes a crash in the core dump logic, which is missing the
ERR_PTR check and ends up dereferencing it, as shown in the trace below.
Switch tracer creation to return NULL on failure only, so callers only
need a single NULL check.
Internal error: Oops: 0000000096000006 [#1] SMP
Modules linked in: mlx5_ib ib_uverbs ib_core ipv6 mlx5_core
CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.19.7 #1 PREEMPT(none)
Workqueue: mlx5_health0001:01:00.0 mlx5_fw_reporter_err_work [mlx5_core]
pstate: a3400009 (NzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core]
lr : mlx5_fw_tracer_trigger_core_dump_general+0x40/0xe0 [mlx5_core]
sp : ffff800081cf3c40
x29: ffff800081cf3c90 x28: 0000000000000000 x27: 0000000000000000
x26: ffff000080018828 x25: 0000000000000000 x24: ffff000080304a05
x23: ffff800081cf3d80 x22: ffff0000847e01a0 x21: 0000000000000000
x20: ffff0000847e01a0 x19: ffffffffffffffa1 x18: ffff80008310bbf0
x17: ffff800080119650 x16: ffff80008010df54 x15: ffff80008010d4ac
x14: ffff800079c202e4 x13: ffff80008002fe60 x12: ffff800080119650
x11: ffff80008010df54 x10: ffff80008010d4ac x9 : ffff800079c203d8
x8 : ffff800081cf3c88 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000030
x2 : 0000000000000008 x1 : 0000000000000000 x0 : 00000000c5c4000e
Call trace:
mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core] (P)
mlx5_fw_reporter_dump+0x30/0x2e0 [mlx5_core]
devlink_health_do_dump+0x9c/0x160
devlink_health_report+0x1c0/0x288
mlx5_fw_reporter_err_work+0xac/0xc0 [mlx5_core]
process_one_work+0x15c/0x3d8
worker_thread+0x18c/0x320
kthread+0x148/0x228
ret_from_fork+0x10/0x20
Code: b9400000 5ac00800 7a401800 540003ca (3940a260)
---[ end trace 0000000000000000 ]---
Kernel panic - not syncing: Oops: Fatal exception
SMP: stopping secondary CPUs
Kernel Offset: disabled
CPU features: 0x000000,00078031,75fce5a1,35fffe67
Memory Limit: none
---[ end Kernel panic - not syncing: Oops: Fatal exception ]---
Fixes:
|
||
|
Chris Mi
|
43e970d961 |
net/mlx5: SF, Handle function changed event
When host is powered off, firmware does not send vhca_state event
for every probed host SF on the DPU because it may have deployed
thousands of SFs to the host. Instead it sends a function changed
event. Currently, only VFs handle this event. This commit extends
support to SFs.
When DPU user deactivates[1] SFs, mlx5 expects vhca_state event
and leaves the SF in dangling state[2].
When DPU user deletes[3] SFs, mlx5 also expects vhca_state event
and destroys the SF resources[4].
Fix it by changing SF to the right state and freeing SF resources
when the function changed event is received.
When this event is received, driver checks all SF states.
- If state is in_use, change it to active.
- If state is teardown_request, change it to allocated.
And SF hardware table entry is freed if it is pending for delete.
[1]
# devlink port function set en3f0c1pf0sf0 state inactive
[2]
# devlink port function set en3f0c1pf0sf0 state active
Error: mlx5_core: SF is inactivated but it is still attached.
kernel answers: Device or resource busy
[3]
# devlink port show
pci/0000:03:00.0/229376: type eth netdev en3f0c1pf0sf0 \
flavour pcisf controller 1 pfnum 0 sfnum 0 splittable false
function:
hw_addr 00:00:00:00:00:00 state active opstate attached \
roce enable trust off max_uc_macs 4096 max_io_eqs 8
# devlink port del en3f0c1pf0sf0
[4]
# devlink port add pci/0000:03:00.0 flavour pcisf pfnum 0 sfnum 0 \
controller 1
Error: mlx5_core: SF already exist. Choose different sfnum.
kernel answers: File exists
Fixes:
|
||
|
Or Har-Toov
|
1c4dac9bf1 |
devlink: fix net namespace reference leak in reload
devlink_nl_reload_doit() calls devlink_netns_get(), which returns a net
with a held reference. When the requested namespace differs from the
current one and the reload action is not DRIVER_REINIT, the function
returns -EOPNOTSUPP without releasing the reference. Add the missing
put_net() on this error path.
Fixes:
|
||
|
Jiawen Liu
|
f307a7dc32 |
net: hisilicon: hix5hd2_gmac: remove redundant NAPI delete
hix5hd2_dev_remove() calls netif_napi_del() before unregister_netdev().
This is not needed because free_netdev() deletes all NAPI instances
attached to the net_device.
Remove the redundant call and let the networking core tear down the NAPI
instance during unregister_netdev(). The probe error path still keeps its
explicit netif_napi_del(), because the device has not been registered
there.
Fixes:
|
||
|
Linus Torvalds
|
0131b508c0 |
Description for this pull request:
- Keep RECALL_ON_OPEN in inode flags when reloading them from $FILE_NAME.
- Check runlist reallocation sizes for negative values and overflow.
- Drop stale page cache after shrinking non-resident attributes to prevent
writeback failures and data loss.
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Merge tag 'ntfs-for-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs
Pull ntfs fixes from Namjae Jeon:
- Keep RECALL_ON_OPEN in inode flags when reloading them from
$FILE_NAME
- Check runlist reallocation sizes for negative values and overflow
- Drop stale page cache after shrinking non-resident attributes to
prevent writeback failures and data loss
* tag 'ntfs-for-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs:
ntfs: drop stale page-cache when shrinking a non-resident attr
ntfs: harden runlist realloc size calculations
ntfs: preserve RECALL_ON_OPEN on WSL special-file reparse points
|
||
|
Linus Torvalds
|
bc29fe1c61 |
three ksmbd server fixes
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||
|
Jamal Hadi Salim
|
47d7f70512 |
net/sched: cls_route: fix fastmap use-after-free on filter
The route4 classifier maintains a 16-slot fastmap cache that stores raw
struct route4_filter pointers indexed by (id, iif). The reader
(route4_classify) populates this cache via route4_set_fastmap() for every
classified packet that hits a filter. The writer (route4_delete,
route4_change) clears the cache via route4_reset_fastmap() before
RCU-deferred kfree of the filter.
This creates a UAF race:
1. Reader walks the RCU-protected bucket chain, finds filter f
2. Writer unlinks f, calls route4_reset_fastmap(), then tcf_queue_work()
3. Reader calls route4_set_fastmap() and writes f into the cache
*after* the writer's reset, caching a pointer about to be freed
4. After the RCU grace period, kfree(f) executes
5. Next classified packet on the same (id, iif) tuple hits the stale
fastmap entry and reads f->res from freed memory
Reproduced with an mdelay(100) accelerator in route4_set_fastmap() and a
concurrent add/delete stress test (provided by both zdi and Santosh).
Both triggered KASAN slab-use-after-free reports in the route4 fastmap
paths.
Fix:
Introduce a per-filter boolean dying flag to suppress stale fastmap
republishing by in-flight readers.
Fixes:
|
||
|
Linus Torvalds
|
f30ca2ce7d |
ata fixes for 7.2-rc6
- Fix PCI resource initialization in the sata_mv driver to keep legacy
Marvell boards functional (Rosen).
- Fix ahci_ceva driver initialization error path (Radhey).
- Fix libata header file to remove a kernel doc compilation warning
(Randy).
- Increase the timeout for the STANDBY IMMEDIATE command to avoid
suspend failures with drives that are slow to respond to this command
(Matt).
- Fixes for the handling of timed out commands in the presence of
deferred non-NCQ commands, to avoid excessive delays in executing the
error handler (me).
- Disable link power management for a couple of WD drives that have
been identified as not functioning properly when power management is
used (Niklas).
- Fix the device iteration loop when checking for link power management
support to correctly handle port multiplier setups (Niklas).
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Merge tag 'ata-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Damien Le Moal:
- Fix PCI resource initialization in the sata_mv driver to keep legacy
Marvell boards functional (Rosen)
- Fix ahci_ceva driver initialization error path (Radhey)
- Fix libata header file to remove a kernel doc compilation warning
(Randy)
- Increase the timeout for the STANDBY IMMEDIATE command to avoid
suspend failures with drives that are slow to respond to this command
(Matt)
- Fixes for the handling of timed out commands in the presence of
deferred non-NCQ commands, to avoid excessive delays in executing the
error handler (me)
- Disable link power management for a couple of WD drives that have
been identified as not functioning properly when power management is
used (Niklas)
- Fix the device iteration loop when checking for link power management
support to correctly handle port multiplier setups (Niklas)
* tag 'ata-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-sata: fix ata_scsi_lpm_supported() iteration
ata: libata-core: Disable LPM on WD Green 2.5 480GB
ata: libata-core: Disable LPM on some WD drives
scsi: libsas: terminate deferred commands on time out
ata: libata-scsi: schedule deferred atapi command
ata: libata-scsi: terminate deferred commands on time out
ata: libata-eh: Increase STANDBY IMMEDIATE timeout
ata: libata: avoid kernel-doc warnings
ata: ahci_ceva: fix error paths in ceva_ahci_platform_enable_resources()
ata: sata_mv: accept 1 or 2 resources in platform probe
|
||
|
Zhiling Zou
|
653d7ddf6c |
inet: frags: publish queues before arming timer
inet_frag_create() arms the fragment queue timer before inserting the
queue into the fqdir rhashtable. If the namespace fragment timeout is
zero or negative, the timer can run before the queue is published.
The timer callback then marks the queue complete, tries to remove a node
that is not in the hash table yet, and drops the anticipated hash
reference. Creation can subsequently publish the completed queue without
restoring that reference, leaving a stale hash node after the caller drops
the remaining reference.
Publish the queue first and arm the timer while holding the queue lock.
This makes timer expiry wait until the queue is visible in the hash table,
so inet_frag_kill() can remove the node and balance the hash reference.
Fixes:
|
||
|
Mark Brown
|
ee145d35e4
|
ASoC: codecs: lpass-{tx,wsa}-macro: fix enum kcontrol accesses
Dawid Wróbel <me@dawidwrobel.com> says: Both drivers access enumerated controls through value.integer.value[0] instead of value.enumerated.item[0]. The same bug was fixed in rx-macro and va-macro in 2022 ( |
||
|
Dawid Wróbel
|
56f24311fd
|
ASoC: codecs: lpass-wsa-macro: Fix enum kcontrol accesses
EAR SPKR PA Gain" and the four "WSA RX* Mux" controls are enumerated, but their get and put callbacks access the value through ucontrol->value.integer.value[0] (a long) instead of ucontrol->value.enumerated.item[0] (an unsigned int). This same pattern was fixed in the sibling drivers by commit |
||
|
Dawid Wróbel
|
1ba381759e
|
ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses
The "DEC0 MODE" to "DEC7 MODE" controls are enumerated, but tx_macro_dec_mode_get() and tx_macro_dec_mode_put() access their value through ucontrol->value.integer.value[0] (a long) instead of ucontrol->value.enumerated.item[0] (an unsigned int). This same pattern was fixed in the sibling drivers by commit |
||
|
Masami Hiramatsu (Google)
|
260b20d9b7 |
ring-buffer: Fix subbuf_ids memory leak in rb_allocate_cpu_buffer() error path
In rb_allocate_cpu_buffer(), cpu_buffer->subbuf_ids is allocated using
kcalloc() when buffer->remote is non-NULL. If a subsequent page allocation
fails (e.g., ring_buffer_desc_page() returns NULL or rb_allocate_pages()
fails), execution jumps to fail_free_reader.
While __free(kfree) automatically frees the outer cpu_buffer structure
at scope exit, kfree(cpu_buffer) does not recursively free nested heap
pointers such as cpu_buffer->subbuf_ids, resulting in a memory leak.
Fix this by explicitly freeing cpu_buffer->subbuf_ids in the
fail_free_reader error unwinding path when cpu_buffer->remote is set.
Link: https://patch.msgid.link/178550740672.380917.6067449683620196150.stgit@devnote2
Fixes:
|
||
|
Linus Torvalds
|
f01618fd79 |
block-7.2-20260731
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||
|
Baul Lee
|
63488dba65 |
net: bridge: mrp: fix uninitialised bytes on the wire
br_mrp_alloc_test_skb() builds MRP test frames on an skb from
dev_alloc_skb(), which does not clear the linear data area. On the MRA
ring-role branch the sub-option TLV header is appended with
sub_tlv = skb_put(skb, sizeof(*sub_tlv));
sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR;
so sub_tlv->length is never written, and the two trailing alignment bytes
are appended with a bare skb_put() that does not clear them either. The
neighbouring oui and sub_opt regions are explicitly zeroed, so three
uninitialised bytes are left in every MRA MRP_Test frame that goes out.
Put the sub-option TLV header and the alignment padding in a single
skb_put_zero(), which clears both. The AUTO_MGR sub-TLV carries no
payload, so the zeroed length field is already the value it should have.
Fixes:
|
||
|
Mahanta Jambigi
|
9762450949 |
net/smc: fix qentry overwrite for CONFIRM_LINK and ADD_LINK_CONT in smc_llc_event_handler()
The SMC_LLC_CONFIRM_LINK / SMC_LLC_ADD_LINK_CONT branch in
smc_llc_event_handler() stores an incoming qentry into the local LLC flow
without first checking whether a qentry is already pending. If a malicious or
buggy peer sends a second CONFIRM_LINK or ADD_LINK_CONT request while a flow is
active and flow->qentry is already set, smc_llc_flow_qentry_set() overwrites the
pointer without freeing the previous allocation, leaking one kmalloc-96 object
per spurious message.
The sibling SMC_LLC_DELETE_LINK branch already has the correct !flow->qentry
guard. Apply the same guard to the CONFIRM_LINK/ADD_LINK_CONT branch so that a
duplicate message when qentry is already occupied falls through to break and is
freed by the kfree(qentry) at the out: label, rather than silently leaking the
existing allocation.
The response direction (smc_llc_rx_response()) is unaffected: it already guards
with flow->qentry at the equivalent site and drops duplicate responses
correctly.
Fixes:
|
||
|
Linus Torvalds
|
5d0c32d6ec |
io_uring-7.2-20260731
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||
|
Linus Torvalds
|
680d49d84c |
drm fixes for 7.2-rc6
dp: - Restrict some DP bandwidth calculations to HDMI DFP. bridge: - Fix small leak in bridge/display-connector mediatek: - Check CRTC state before freeing - mtk_hdmi: Fix DDC adapter double put in v2 - mtk_hdmi_common: take i2c adapter module reference - mtk_dsi: Enable HS clock only at pre-enable - ovl_adaptor: balance component registrations amdgpu: - VCN 5.3 fix - UserQ fixes - GEM close optimization - HDMI AV mute fix - UML build fixes - GFXOFF residency metrics fixes - SMU 15 fixes - debug_vm fix - PSP 15 fixes - NBIO 7.11.5 fix - pptable use after free fix - gpu metrics fetch fix - DC viewport fix - DML2.1 fix - i2c retimer spam fix - UMD profile pstate fix - Power metrics format cleanup - GTT size fix on APUs - DC context logging fix - PM sysfs fix for APUs - Follow on pageflip timeout fix amdkfd: - Various bounds checking fixes - Mutex locking fix i915/xe: - Check no-DMA huge-pte cases before DMA segment test - sink FRL rate fix - 200ms fix for TMDS scrambler status vmwgfx: - Improve various size checks and limit checks. - Fix oops when submitting invalid execbuf ioctl. - Correctly lock in vmfwgx fence signaling path. - More validation of execbuf ioctl. - Fix oops in vmwgfx vkms init failure path. - Overflow handling in shader path. panthor: - Improve firmware validation imagination: - Improve imagination trace points. qaic: - Fix QAIC transaction length check. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmptE3kACgkQDHTzWXnE hr6EDw/8C5sATWrFBST0pLzrmbn19pCtb9rU2T3TeSGNTMbELwBaH8HH9yyolglY Z2ukKpSsKxiqddedXAb6k2cLBBIfb9Du2Jw8WvqjI071Gz+VZA3UL/lyjPOaZuw6 xIj6QBYr5zyJYSupUwIamN49Q1C712UpTf1jIkX+Gzbumv8vvnezoT6MXXpYyDL3 vyPrPeTHOoa5giLuh6NL0pUAYuwZY1SDCVWOv7KtUTYdUZUhiKtE0TLN5YmSDPVS u6CS3l3fp2hRk0JWygOlNfTjTrNy3p0Y5A+wv45Rj7HNsRwkpaDhn6w8o9EEYkGk M9ZxTkjVHLCdeF7azMt2tZFWqU879xjz96YEX3oO+kbJyd2mCUZsDhmMfBeMIPkt Hur1qe+8r1/I0Q0NNjWkCvRL3ATcP9X8PVTk7tCbmZTsB286QXdYDMuHBMCAV3H7 8NjYirnvt2AVMajceKpy9rDwfvZEBmMZOsd5G8+/rHALrt+tnfYDVFCoMU9jY2rV +DNgFtQ/BVKBHj7GZKufpyZIfpdt+nMe2WpTCn6HnmFk72dl12muC6XjyFUMVWJR jrO4JZW3n11rmqTykPH6I9jJ2ts7596+BKopZBAuG26zi77jPDFrlT5jKj358Miu 6Z7sekYAeomRpdjtVh3HjDqLVxYpiDkxqm6xLvpXfDp3UbufWHU= =L5HJ -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2026-08-01' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Weekly pulls request. As expected there is more AMD this week since Alex was off last week, vmwgfx looks to have been hit with the AI stick a bit and mediatek as well. Otherwise some minor fixes across the board, the new normal definitely seems to be a thing. dp: - Restrict some DP bandwidth calculations to HDMI DFP bridge: - Fix small leak in bridge/display-connector mediatek: - Check CRTC state before freeing - mtk_hdmi: Fix DDC adapter double put in v2 - mtk_hdmi_common: take i2c adapter module reference - mtk_dsi: Enable HS clock only at pre-enable - ovl_adaptor: balance component registrations amdgpu: - VCN 5.3 fix - UserQ fixes - GEM close optimization - HDMI AV mute fix - UML build fixes - GFXOFF residency metrics fixes - SMU 15 fixes - debug_vm fix - PSP 15 fixes - NBIO 7.11.5 fix - pptable use after free fix - gpu metrics fetch fix - DC viewport fix - DML2.1 fix - i2c retimer spam fix - UMD profile pstate fix - Power metrics format cleanup - GTT size fix on APUs - DC context logging fix - PM sysfs fix for APUs - Follow on pageflip timeout fix amdkfd: - Various bounds checking fixes - Mutex locking fix i915/xe: - Check no-DMA huge-pte cases before DMA segment test - sink FRL rate fix - 200ms fix for TMDS scrambler status vmwgfx: - Improve various size checks and limit checks - Fix oops when submitting invalid execbuf ioctl - Correctly lock in vmfwgx fence signaling path - More validation of execbuf ioctl - Fix oops in vmwgfx vkms init failure path - Overflow handling in shader path panthor: - Improve firmware validation imagination: - Improve imagination trace points. qaic: - Fix QAIC transaction length check" * tag 'drm-fixes-2026-08-01' of https://gitlab.freedesktop.org/drm/kernel: (59 commits) drm/i915/hdmi: Poll for 200 msec for TMDS_Scrambler_Status drm/amd/display: Exit idle optimizations before programming drm/amd/pm: hide pp_table sysfs on APUs accel/qaic: use sizeof(*trans_hdr) for transaction length check drm/panthor: validate firmware interface structure sizes drm/xe/pt: check no-DMA huge-pte cases before DMA segment test drm/imagination: Update the trace point pvr_job_submit_fw() drm/i915/dp: Ignore the sink's DSC max FRL rate without a PCON DSC encoder drm/mediatek: ovl_adaptor: balance component registrations drm/mediatek: mtk_dsi: Enable HS clock only at pre-enable drm/dp: Read the PCON max FRL bandwidth only for HDMI DFPs drm/amd/display: use proper context for logging drm/amdgpu: cap GTT size to physical RAM on APUs drm/amd/pm: use milliwatts for GPU power sensors drm/amdgpu: restore UMD profile pstate after runtime resume drm/amd/display: Silence link_dpms I2C retimer failures drm/amdkfd: hold event_mutex while checkpointing CRIU events drm/amd/display: check if dml21_add_phantom_plane() is successful drm/amd/display: Fix divide-by-zero in calculate_mcache_setting on zero viewport drm/amd/display: Add AV mute wait frames to dce110_set_avmute ... |
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|
Linus Torvalds
|
a2cf4ef331 |
Devicetree fixes for v7.2, part 1:
- Fix NULL bus dereference in of_pci_range_parser_one() - Prevent OOB access when too many dynamic reserved memory regions are defined -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAmptCRcACgkQ+vtdtY28 YcN4oQ/9GJYlymn6frwBmPiG7iVK8OQgvFClUn61/nTuyvaOv5mXDQzbRsP1TqMG xn+XqAww6XCT4k08bxVe1nORJAIkittVjXLcWLU4EnO7+rHFZnXpEeijWDqMuYT8 rbEArsFyC1u4Uk+TXMwd0lqTZNogrJWR1hXd+T4Kecv+ORVbBeKMdWPZkMdK/KTP h88iio1V489hdufVMLjcORoySh23i1qJ1qBgjHZIS0lpdBbg2JiXfLvUJHCWHRiU W2Ucrpz/Wq//86pBie+TWn0IisYOvTB8g/ZLnrG33iN7+HaQMxlP+Cs90V6T9cGi DQ64LPfvRQrr0KlZ1TxoEy9N2N3SQXJ3l/Hq+nK08B6xlHl+d67cSRzxra/6qs3Z 7scbD5K+K6A9MnSlLn4+wxOyocF/rMHBu+RUUdiO/PqHoFe0TpMR3GHpRysGcebG OPNbZ1dP8TGaG38wOKj+ZJldoNABO0Sox0/OMv1WNHFbbhoyoDDlajDxJua3lO3U X4NN/C0bS5EiGSqSZ5SpiAF85Qj13s0RPBB223bEG7PxBA7kfk0UnU/OQwkJLb2y 8GIuG4qWeCXQhcWqxBf++DhmS61LzY3D49qHD4c6oD7ji/3ZGeWR9yyI3o/PQcG+ Gvj4CrQTCicLYgiJxL4VvKuXhXy6JhuJQi/kddO6GfwEyC5IWek= =9x2Y -----END PGP SIGNATURE----- Merge tag 'devicetree-fixes-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Fix NULL bus dereference in of_pci_range_parser_one() - Prevent out-of-bounds access when too many dynamic reserved memory regions are defined * tag 'devicetree-fixes-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of/address: Fix NULL bus dereference in of_pci_range_parser_one() of: reserved_mem: prevent OOB when too many dynamic regions are defined |
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Linus Torvalds
|
de8c3b8e05 |
Hyper-V fixes for v7.2
-----BEGIN PGP SIGNATURE----- iQFHBAABCgAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmps/3ITHHdlaS5saXVA a2VybmVsLm9yZwAKCRB2FHBfkEGgXoWQB/40sKuM2KWl3Ek6CnKgGLzaUrVTxW8x MTRyusPZ+AOJTtasC7LBTajCa/gXSHEebPdWFeA7jyPPrv3ZhRywBDHSZoSdzd7r sYfBGkXovfcgAV0jKrk65wupS6ymiZkO3xAngsIzxExHIa8JiuJXyQsHIYI/oH4K xs+/q9OlYVYP2f7UgC1XusuXlIx2Fixxr70//kyiuBOhPq32iu77CBbFm47Ac5JC kKq71AXnUlDrswIo8wOJCWmfRrq0s9837zDYnwrIGTw8GvOE9Z+xmvGx+StWy2jE bBTCzhliXUIxxByC5msothkFSVuPIKJkepwhKYaOEUsgeV1RdhQrDgJC =84+i -----END PGP SIGNATURE----- Merge tag 'hyperv-fixes-signed-20260731' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyper-v fixes from Wei Liu: - Multiple fixes for the MSHV driver (Stanislav Kinsburskii, Wei Liu, Yi Xie, Yousef Alhouseen) - Multiple fixes for the VMBus driver (Hardik Garg, Michael Kelley, Sebastian Andrzej Siewior) * tag 'hyperv-fixes-signed-20260731' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: mshv_vtl: bounds-check cpu index in vtl mmap fault handler mshv: Publish VP to pt_vp_array before installing the file descriptor Drivers: hv: vmbus: add VTL2 redirect connection ID mshv: Order pt_vp_array publish against irqfd assertion path mshv: Fix missing error code on VP allocation failure mshv: Fix level-triggered check on uninitialized data mshv: Fix race in mshv_irqfd_deassign mshv: Use kfree_rcu in mshv_portid_free mshv: Fix sleeping under spinlock in mshv_portid_alloc mshv: Fix duplicate GSI detection for GSI 0 Drivers: hv: vmbus: Remove vmbus_irq_initialized Drivers: hv: vmbus: Replace lockdep_hardirq_threaded() with lockdep annotation mshv_vtl: fix fd leak in mshv_ioctl_create_vtl() mshv_vtl: clear hypercall output before copyout Drivers: hv: vmbus: Set DMA coherent mask for VMBus devices mshv: fix hv_input_get_system_property struct |
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Linus Torvalds
|
ce6ce829c8 |
RTLA fixes for v7.2
- Fix timerlat top actions triggering on signal Fix a bug in RTLA's timerlat top actions feature where on-threshold actions are triggered on any signal, regardless of whether a latency spike had actually occurred during the measurement. The return retval was checked for non-zero to do actions. But if a signal came in, it returns a negative and actions were being incorrectly triggered when they should not have been. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCamzXpBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qnQHAQDso34IvlbyNqDUroLLfV7f+Qsikyvz OVxp9Q+b2F+57QD9H7k0OxDFfkycTFUpBaCKv1jmOXIqaGE9M1QbwE+eZgA= =3ND6 -----END PGP SIGNATURE----- Merge tag 'trace-tools-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull RTLA fix from Steven Rostedt: - Fix timerlat top actions triggering on signal Fix a bug in RTLA's timerlat top actions feature where on-threshold actions are triggered on any signal, regardless of whether a latency spike had actually occurred during the measurement. The return retval was checked for non-zero to do actions. But if a signal came in, it returns a negative and actions were being incorrectly triggered when they should not have been. * tag 'trace-tools-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: rtla/timerlat_top: Fix on-threshold actions firing on signal |
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Yi Xie
|
22dfdc17ce |
mshv_vtl: bounds-check cpu index in vtl mmap fault handler
cpu is taken from pgoff & 0xffff. cpu_online() does not reject cpu >= nr_cpu_ids, and per_cpu_ptr() can then walk off __per_cpu_offset. Signed-off-by: Yi Xie <xieyi@kylinos.cn> Reviewed-by: Naman Jain <namjain@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Stanislav Kinsburskii
|
72e3b0311a |
mshv: Publish VP to pt_vp_array before installing the file descriptor
mshv_partition_ioctl_create_vp() called anon_inode_getfd() before
publishing the new VP into partition->pt_vp_array. anon_inode_getfd()
includes fd_install(), so the fd was live in current->files before the
publish ran.
A concurrent MSHV_RUN_VP ioctl on that fd does not serialise against the
in-progress MSHV_CREATE_VP — it takes vp->vp_mutex, not the partition
mutex. Once the VP starts running and traps, mshv_intercept_isr() can look
up partition->pt_vp_array[vp_index] and observe NULL, silently dropping the
intercept message.
Split the fd creation: reserve an fd with get_unused_fd_flags(), create the
file with anon_inode_getfile(), publish the VP via smp_store_release(), and
finally call fd_install() as the userspace-visibility commit point.
Fixes:
|
||
|
Hardik Garg
|
92d0593128 |
Drivers: hv: vmbus: add VTL2 redirect connection ID
VMBus sends CHANNELMSG_INITIATE_CONTACT through a Hyper-V message connection ID. Older protocol versions use VMBUS_MESSAGE_CONNECTION_ID, while protocol version 5.0 and newer normally use VMBUS_MESSAGE_CONNECTION_ID_4. For a VTL2 kernel using VMBus protocol 5.0 or newer, the host may expect INITIATE_CONTACT on either the redirect connection ID or VMBUS_MESSAGE_CONNECTION_ID_4. There is no capability indication that identifies which ID is active, so the driver must determine it at runtime. During VMBus negotiation, the redirect ID is tried first because it is used by VTL2 configurations with VMBus redirection enabled. If the redirect ID is unavailable, the host rejects it synchronously with HV_STATUS_INVALID_CONNECTION_ID, allowing fallback to the standard ID. Return a distinct error for an invalid Initiate Contact connection ID so this fallback does not mask other post-message failures or protocol-version rejections. Preserve the existing connection ID selection for older protocol versions or when running below VTL2. Signed-off-by: Hardik Garg <hargar@linux.microsoft.com> Reviewed-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Naman Jain <namjain@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Stanislav Kinsburskii
|
b098dc8692 |
mshv: Order pt_vp_array publish against irqfd assertion path
mshv_partition_ioctl_create_vp() initialises a VP struct (allocations,
mutex_init, init_waitqueue_head, page mappings) and then publishes the
pointer into partition->pt_vp_array. Several ISR paths read this array
locklessly: the intercept ISR, the two scheduler ISRs, and
mshv_try_assert_irq_fast() on the irqfd fast path.
Of these, only mshv_try_assert_irq_fast() can structurally race the
publish. It runs from an eventfd waker without holding pt_mutex, and
MSHV_IRQFD does not require the target lapic_apic_id (== vp_index) to
refer to an existing VP at registration time. A user can therefore
register an irqfd targeting a yet-to-be-created VP, then trigger
mshv_try_assert_irq_fast() concurrently with MSHV_CREATE_VP for the
same index. On weakly-ordered architectures the reader can observe a
non-NULL pointer in pt_vp_array before the initialising stores to the
VP struct become visible, leading to use of partially-initialised
fields (e.g. vp_register_page).
The other ISR readers cannot reach this race: the hypervisor will not
generate intercept or scheduler messages for a VP that has never been
told to run, and the user can only call MSHV_RUN_VP on the VP fd
returned by MSHV_CREATE_VP, which by construction is returned after
the publish. Leave those readers as plain loads.
Use smp_store_release() in mshv_partition_ioctl_create_vp() to publish
the pointer, and pair it with smp_load_acquire() in
mshv_try_assert_irq_fast(). On x86 these compile to plain accesses
under TSO; on ARM64 they emit one-instruction acquire/release barriers,
acceptable on this fast path.
The destroy-side path (destroy_partition() clearing pt_vp_array[i] to
NULL after kfree(vp)) has a separate ordering and lifetime concern
that is out of scope here.
Fixes:
|
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Stanislav Kinsburskii
|
f546be6a19 |
mshv: Fix missing error code on VP allocation failure
In mshv_partition_ioctl_create_vp(), when kzalloc for the VP struct
fails, the code jumps to the cleanup path without setting ret. At that
point ret is 0 from the preceding successful mshv_vp_stats_map() call,
so the function returns success to userspace despite having failed to
create the VP. No fd is installed and no VP is registered in pt_vp_array,
but userspace has no way to know the operation failed.
Set ret to -ENOMEM before jumping to the cleanup path.
Fixes:
|
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|
Stanislav Kinsburskii
|
0289a67cd7 |
mshv: Fix level-triggered check on uninitialized data
In mshv_irqfd_assign(), the level-triggered validation for resample
irqfds checks irqfd_lapic_irq.lapic_control.level_triggered before
mshv_irqfd_update() has populated the field. Since the irqfd struct is
zero-allocated, level_triggered is always 0 at that point, causing the
check to always reject resample irqfds with -EINVAL. This makes
level-triggered interrupt resampling — used to avoid interrupt storms
with assigned devices — completely non-functional.
Move the check after the mshv_irqfd_update() call, which resolves the
IRQ routing entry and populates irqfd_lapic_irq with the actual trigger
mode.
Fixes:
|
||
|
Stanislav Kinsburskii
|
0762262ac3 |
mshv: Fix race in mshv_irqfd_deassign
mshv_irqfd_deactivate() and the hlist traversal of pt_irqfds_list
require pt->pt_irqfds_lock to be held, but mshv_irqfd_deassign()
omits it. This races with the EPOLLHUP path in mshv_irqfd_wakeup(),
which does take the lock before calling mshv_irqfd_deactivate().
Additionally, mshv_irqfd_deactivate() uses hlist_del() which poisons
the node pointers rather than resetting them. Since
mshv_irqfd_is_active() relies on hlist_unhashed() (checks pprev ==
NULL), a poisoned node still appears active. If a concurrent path calls
mshv_irqfd_deactivate() again on the same irqfd, the guard fails to
prevent a double hlist_del() on poisoned pointers.
Fix both issues:
- Add the missing spin_lock_irq/spin_unlock_irq around the list
traversal in mshv_irqfd_deassign(), matching mshv_irqfd_release().
- Use hlist_del_init() instead of hlist_del() so the node is properly
marked as unhashed after removal, making the is_active guard reliable.
Fixes:
|
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|
Stanislav Kinsburskii
|
5cb5c2f4a8 |
mshv: Use kfree_rcu in mshv_portid_free
mshv_portid_free() uses synchronize_rcu() followed by kfree() to reclaim port table entries. This blocks the caller until a full RCU grace period elapses, which is unnecessary since the same module already uses the non-blocking kfree_rcu() pattern in mshv_port_table_fini(). Replace with kfree_rcu() to avoid the blocking wait and keep the reclamation strategy consistent across the file. Signed-off-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com> Reviewed-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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|
Eduard Zingerman
|
80f3c3eb43 |
Merge branch 'bpf-preserve-pointer-state-for-commuted-arithmetic'
Yiyang Chen says: ==================== bpf: Preserve pointer state for commuted arithmetic This series fixes pointer-state propagation for commuted scalar += pointer arithmetic in the verifier. Patch 1 simplifies sanitize_err() before the pointer-state change. Patch 2 keeps the full pointer register state when the pointer operand is the source of the add, preserving fields such as the stack frame number and parent id. Patch 3 moves the untrusted PTR_TO_MEM early return after state propagation, so scalar += untrusted_pointer remains usable through the probe-read path. Patch 4 adds verifier selftests for stack frame number preservation, readonly-untrusted memory access, and dynptr data-slice invalidation. Changes in v4: - Target the bpf fixes tree because the affected behavior is present in released kernels. - Add Eduard's sanitize_err() cleanup and revised pointer-state patch, reusing the caller's temporary offset register instead of verifier-env scratch storage. - Correct the stack-frame Fixes tag to the BPF-to-BPF call verification commit identified by Shung-Hsi. - Fix the dynptr test comment style and retain the source-register clear so the test isolates parent-id propagation. - Carry Daniel Wade's Tested-by and Eduard's selftest Acked-by from the v3 thread. - Rebase to bpf base |
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|
Yiyang Chen
|
21596761ff |
selftests/bpf: Cover commuted pointer state propagation
Add verifier coverage for the three cases affected by preserving the full pointer state across scalar += pointer: stack frame number inheritance, readonly-untrusted memory access, and dynptr data-slice invalidation. Signed-off-by: Yiyang Chen <chenyy23@mails.tsinghua.edu.cn> Tested-by: Daniel Wade <danjwade95@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://patch.msgid.link/20260729-c3-035-public-bpf-v4-v4-4-8ee297e2346b@mails.tsinghua.edu.cn Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
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Yiyang Chen
|
cdf19b1b3c |
bpf: Propagate untrusted pointer state in commuted arithmetic
The untrusted PTR_TO_MEM early return skips pointer offset tracking
because accesses go through probe-read handling. Moving it after full
pointer-state propagation ensures scalar += untrusted_pointer leaves the
destination as PTR_TO_MEM instead of an unrelated scalar.
Fixes:
|
||
|
Yiyang Chen
|
a4c6f804b4 |
bpf: Preserve pointer state for commuted arithmetic
When scalar += pointer is handled in adjust_ptr_min_max_vals(), the
destination register inherits the pointer state from the source pointer.
Copying only selected fields is fragile because pointer provenance is
tracked by several bpf_reg_state fields.
Use the caller's temporary offset register to preserve the scalar operand
while replacing the destination with the full pointer state. This preserves
the frame number for PTR_TO_STACK registers and keeps parent identity
fields consistent.
Fixes:
|
||
|
Eduard Zingerman
|
a15970d916 |
bpf: Simplify sanitize_err() signature
The sanitize_err() function is called when: - ptr += scalar - scalar += ptr - scalar += scalar ALU operations are processed. This commit drops offset and pointer registers parameters from its signature to simplify the follow-up changes for 'scalar += ptr' case. regs[src].type is safe to access, as it is not mutated by the callers. Signed-off-by: Yiyang Chen <chenyy23@mails.tsinghua.edu.cn> Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Link: https://patch.msgid.link/20260729-c3-035-public-bpf-v4-v4-1-8ee297e2346b@mails.tsinghua.edu.cn Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Linus Torvalds
|
6269cc6f52 |
spi: Fixes for v7.2
The drip of driver specific fixes, mostly from the device vendors themselves, keeps on coming in. There's more than I'd like right now but equally nothing hugely alarming. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmps47sACgkQJNaLcl1U h9DonAf/S1AkgEGMws3rJCTH+Bcb7ON9Xvsbjv2rU/CI7lINpSJzbUUJ1Z0qk8KX NaK8ByXBDvn06qS/6hirwuNl/lfJ69XNWSlV8MJGWXHfui2sN6ngFJy9jnTIQY72 bq0rTEPapAFg86Loare1i1nHSomLnICoq/KveE08muiPoBtjFKzP7AF7gDmfN0ot g3x39WL6bLY/qrqVw1aT/tqdVl97os/e2EJIx8lxh1M5waN/kpfFoRD/dVbdO6ZU 8iOKPzIeMco0r1JOtGq2q7JCiHN9DP8+Enyf6hkkgBS/HPEHJkO10t9PAY/ArR12 /KNB7i/i/O35ChESDgk70mcuToLbgg== =g0xm -----END PGP SIGNATURE----- Merge tag 'spi-fix-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "The drip of driver specific fixes, mostly from the device vendors themselves, keeps on coming in. There's more than I'd like right now but equally nothing hugely alarming" * tag 'spi-fix-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spi-nxp-fspi: propagate clock reconfig failures in nxp_fspi_select_mem() spi: spi-nxp-fspi: enter stop mode before reconfiguring MCR0 and DLL spi: spi-nxp-fspi: add per-SoC SDR/DTR clock rate limits for all supported SoCs spi: spi-qpic-snand: write the feature value before executing SET_FEATURE spi: spi-cadence: Move TX FIFO full busy-wait into FIFO spi: qcom-qspi: Correct max DMA length to avoid 64K boundary failure spi: spacemit: prepare both DMA descriptors before submitting |
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|
Lizhi Hou
|
8d51e0fd3e |
accel/amxdna: Fix page-insertion errors in amdxdna_insert_pages()
Two error paths in amdxdna_insert_pages() called vma->vm_ops->close(vma)
before returning an error code to the caller. This is incorrect:
amdxdna_gem_obj_mmap() registers an HMM interval notifier before calling
amdxdna_insert_pages(), and on a hard error it jumps to hmm_unreg to undo
that registration. Calling vm_ops->close() manually — which drops the
shmem pages_pin_count and the GEM object reference that backs the VMA —
before the mmap syscall has even returned causes those resources to be
released while the VMA is still alive. The kernel VMA teardown will call
vm_ops->close() a second time when the process later unmaps the range,
producing a reference count underflow.
Replace both hard-error returns with a deferred-fault approach that keeps
the VMA alive and retries page insertion through the HMM range-fault path.
Fixes:
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||
|
Achilles Gaikwad
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e053b624f5 |
NFSv4.2: fix nfs4_listxattr size accounting
A call to listxattr() with a buffer size of 0 returns the actual
size of the buffer needed for a subsequent call. On an NFSv4.2
mount this triggers the following oops:
[ 399.768687] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 399.768705] RIP: 0010:_copy_from_pages+0x44/0xe0
[ 399.768722] Call Trace:
[ 399.768723] nfs4_xattr_alloc_entry+0x1bf/0x1e0
[ 399.768730] nfs4_xattr_cache_set_list+0x43/0x1f0
[ 399.768731] nfs4_listxattr+0x21f/0x250
[ 399.768733] vfs_listxattr+0x55/0xa0
[ 399.768736] listxattr+0x23/0x160
[ 399.768737] path_listxattrat+0xba/0x1e0
[ 399.768739] do_syscall_64+0xe2/0x680
security_inode_listsecurity() (via the xattr_list_one() helper) now
decrements the remaining size even when the buffer pointer is NULL, so
in the size-query case, 'left' underflows to a huge size_t value. As a
result, nfs4_listxattr_nfs4_user() treats the NULL buffer as a real one,
leading to a NULL pointer dereference in _copy_from_pages().
security_inode_listsecurity() does not return the number of bytes
it added to the list, so the code derived it as
'size - error - left'. That is also wrong in the size-query case:
the generic_listxattr() contribution is only subtracted from 'left'
when a buffer is present. Thus, the query result comes up short by
exactly that contribution (e.g., "system.nfs4_acl" on a mount with
ACL support), and a caller that allocates the returned size gets
-ERANGE on the subsequent call.
Declare 'left' as ssize_t, use a scratch copy to measure security
hook consumption, and only decrement 'left' if a buffer is present.
Fixes:
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||
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Linus Torvalds
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596254ecc5 |
pci-v7.2-fixes-1
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|
Linus Torvalds
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5f5d80d3b7 |
hwmon fixes for v7.2-rc6
- adt7470:
* Fix PWM auto temp state array and bounds check
* Fix divide-by-zero TOCTOU crash in fan speed read
* Use cached PWM frequency value
* Fix swapped PWM3 and PWM4 auto mode masks
* Fix temperature alarm logic in hwmon_temp_read()
* Fix busy-loop and I2C flooding in update thread
* Fix cache updated before hardware write on I2C error
* Fix fans stuck in manual mode on I2C errors
- ina2xx: Fix various overflow issues
- ltc4282: Fix reading the minimum alarm voltage
- lm63: Mask PWM frequency multiplier to supported bits
- lm90: Only report alarms if driver is ready
- nct6775-core:
* Prevent access to unsupported weight registers
* Fix number of temperature registers for NCT6116
- npcm750-pwm-fan: stop fan timer on device detach
- nzxt-smart2: DMA-align output buffer
- pmbus:
* Fix return value from pmbus_update_byte_data()
* Notify on the hwmon device, not the i2c client
- sht3x: Fix unaligned accesses
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Merge tag 'hwmon-for-v7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Most of the patches are fixes for pre-existing issues reported by
Sashiko. I suspect we'll see a lot of those for a while.
- adt7470:
- Fix PWM auto temp state array and bounds check
- Fix divide-by-zero TOCTOU crash in fan speed read
- Use cached PWM frequency value
- Fix swapped PWM3 and PWM4 auto mode masks
- Fix temperature alarm logic in hwmon_temp_read()
- Fix busy-loop and I2C flooding in update thread
- Fix cache updated before hardware write on I2C error
- Fix fans stuck in manual mode on I2C errors
- ina2xx: Fix various overflow issues
- ltc4282: Fix reading the minimum alarm voltage
- lm63: Mask PWM frequency multiplier to supported bits
- lm90: Only report alarms if driver is ready
- nct6775-core:
- Prevent access to unsupported weight registers
- Fix number of temperature registers for NCT6116
- npcm750-pwm-fan: stop fan timer on device detach
- nzxt-smart2: DMA-align output buffer
- pmbus:
- Fix return value from pmbus_update_byte_data()
- Notify on the hwmon device, not the i2c client
- sht3x: Fix unaligned accesses"
* tag 'hwmon-for-v7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (npcm750-pwm-fan): stop fan timer on device detach
hwmon: (pmbus) Fix return value from pmbus_update_byte_data()
hwmon: (adt7470) Fix PWM auto temp state array and bounds check
hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read
hwmon: (adt7470) Use cached PWM frequency value
hwmon: (adt7470) Fix swapped PWM3 and PWM4 auto mode masks
hwmon: (adt7470) Fix temperature alarm logic in hwmon_temp_read()
hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread
hwmon: (adt7470) Fix cache updated before hardware write on I2C error
hwmon: (adt7470) Fix fans stuck in manual mode on I2C errors
hwmon: (nct6775-core) Prevent access to unsupported weight registers
hwmon: (lm63) Mask PWM frequency multiplier to supported bits
hwmon: (nzxt-smart2) DMA-align output buffer
hwmon: (lm90) Only report alarms if driver is ready
hwmon: (sht3x) Fix unaligned accesses
hwmon: (ltc4282) Fix reading the minimum alarm voltage
hwmon: (ina2xx) Fix various overflow issues
hwmon: (pmbus/core) notify on the hwmon device, not the i2c client
hwmon: (nct6775-core) Fix number of temperature registers for NCT6116
|