Fix the max number of bits passed to find_first_zero_bit() in
bnxt_alloc_agg_idx(). We were incorrectly passing the number of
long words. find_first_zero_bit() may fail to find a zero bit and
cause a wrong ID to be used. If the wrong ID is already in use, this
can cause data corruption. Sometimes an error like this can also be
seen:
bnxt_en 0000:83:00.0 enp131s0np0: TPA end agg_buf 2 != expected agg_bufs 1
Fix it by passing the correct number of bits MAX_TPA_P5. Use
DECLARE_BITMAP() to more cleanly define the bitmap. Add a sanity
check to warn if a bit cannot be found and reset the ring [MChan].
Fixes: ec4d8e7cf0 ("bnxt_en: Add TPA ID mapping logic for 57500 chips.")
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Srijit Bose <srijit.bose@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251231083625.3911652-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 1f52d7b622 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
allocated memory for pp_qlt in ipc_mux_init() but did not free it in
ipc_mux_deinit(). This results in a memory leak when the driver is
unloaded.
Free the allocated memory in ipc_mux_deinit() to fix the leak.
Fixes: 1f52d7b622 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
Co-developed-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Jianhao Xu <jianhao.xu@seu.edu.cn>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://patch.msgid.link/20251230071853.1062223-1-zilin@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Mark Bloch says:
====================
mlx5 misc fixes 2025-12-25
This patchset provides misc bug fixes from the team to the mlx5 core and
Eth drivers.
====================
Link: https://patch.msgid.link/20251225132717.358820-1-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The commit which added RX steering rules for PSP forgot to free a modify
header HW object on the cleanup path, which lead to health errors when
reloading the driver and uninitializing the device:
mlx5_core 0000:08:00.0: poll_health:803:(pid 3021): Fatal error 3 detected
Fix that by saving the modify header pointer in the PSP steering struct
and deallocating it after freeing the rule which references it.
Fixes: 9536fbe10c ("net/mlx5e: Add PSP steering in local NIC RX")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20251225132717.358820-6-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Dumping module EEPROM on newer modules is supported through the netlink
interface only.
Querying with old userspace ethtool (or other tools, such as 'lshw')
which still uses the ioctl interface results in an error message that
could flood dmesg (in addition to the expected error return value).
The original message was added under the assumption that the driver
should be able to handle all module types, but now that such flows are
easily triggered from userspace, it doesn't serve its purpose.
Change the log level of the print in mlx5_query_module_eeprom() to
debug.
Fixes: bb64143eee ("net/mlx5e: Add ethtool support for dump module EEPROM")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20251225132717.358820-5-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The mlx5_query_mcia() function unconditionally dereferences the status
pointer to store the MCIA register status value.
However, mlx5e_get_module_id() passes NULL since it doesn't need the
status value.
Add a NULL check before dereferencing the status pointer to prevent a
NULL pointer dereference.
Fixes: 2e4c44b12f ("net/mlx5: Refactor EEPROM query error handling to return status separately")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20251225132717.358820-4-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, the ppcnt_statistical_group capability check
incorrectly gates access to FEC histogram statistics.
This capability applies only to statistical and physical
counter groups, not for histogram data.
Restrict the ppcnt_statistical_group check to the
Physical_Layer_Counters and Physical_Layer_Statistical_Counters
groups.
Histogram statistics access remains gated by the pphcr
capability.
The issue is harmless as of today, as it happens that
ppcnt_statistical_group is set on all existing devices that
have pphcr set.
Fixes: 6b81b8a0b1 ("net/mlx5e: Don't query FEC statistics when FEC is disabled")
Signed-off-by: Alexei Lazar <alazar@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20251225132717.358820-3-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Today multipath offload is controlled by a single route and the route
controlling is selected if it meets one of the following criteria:
1. No controlling route is set.
2. New route destination is the same as old one.
3. New route metric is lower than old route metric.
This can cause unwanted behaviour in case a new route is added
with a smaller network prefix which should get the priority.
Fix this by adding a new criteria to give priority to new route with
a smaller network prefix.
Fixes: ad11c4f1d8 ("net/mlx5e: Lag, Only handle events from highest priority multipath entry")
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20251225132717.358820-2-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Directly increment the TSO features incurs a side effect: it will also
directly clear the flags in NETIF_F_ALL_FOR_ALL on the master device,
which can cause issues such as the inability to enable the nocache copy
feature on the bonding driver.
The fix is to include NETIF_F_ALL_FOR_ALL in the update mask, thereby
preventing it from being cleared.
Fixes: b0ce3508b2 ("bonding: allow TSO being set on bonding master")
Signed-off-by: Di Zhu <zhud@hygon.cn>
Link: https://patch.msgid.link/20251224012224.56185-1-zhud@hygon.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Implement soft_reset, suspend, and resume callbacks using
genphy_soft_reset(), genphy_suspend(), and genphy_resume()
to fix PHY initialization and power management issues.
The soft_reset callback is needed to properly recover the PHY after an
ifconfig down/up cycle. Without it, the PHY can remain in power-down
state, causing MDIO register access failures during config_init().
The soft reset ensures the PHY is operational before configuration.
The suspend/resume callbacks enable proper power management during
system suspend/resume cycles.
Fixes: b2908a989c ("net: phy: add driver for MaxLinear MxL86110 PHY")
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Link: https://patch.msgid.link/20251223120940.407195-1-stefano.r@variscite.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When the ping program uses an IPPROTO_ICMP socket to send ICMP_ECHO
messages, ICMP_MIB_OUTMSGS is counted twice.
ping_v4_sendmsg
ping_v4_push_pending_frames
ip_push_pending_frames
ip_finish_skb
__ip_make_skb
icmp_out_count(net, icmp_type); // first count
icmp_out_count(sock_net(sk), user_icmph.type); // second count
However, when the ping program uses an IPPROTO_RAW socket,
ICMP_MIB_OUTMSGS is counted correctly only once.
Therefore, the first count should be removed.
Fixes: c319b4d76b ("net: ipv4: add IPPROTO_ICMP socket kind")
Signed-off-by: yuan.gao <yuan.gao@ucloud.cn>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20251224063145.3615282-1-yuan.gao@ucloud.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 15faa1f67a ("lan966x: Fix crash when adding interface under a lag")
fixed a similar issue in the lan966x driver caused by a NULL pointer dereference.
The ocelot_set_aggr_pgids() function in the ocelot driver has similar logic
and is susceptible to the same crash.
This issue specifically affects the ocelot_vsc7514.c frontend, which leaves
unused ports as NULL pointers. The felix_vsc9959.c frontend is unaffected as
it uses the DSA framework which registers all ports.
Fix this by checking if the port pointer is valid before accessing it.
Fixes: 528d3f190c ("net: mscc: ocelot: drop the use of the "lags" array")
Signed-off-by: Jerry Wu <w.7erry@foxmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/tencent_75EF812B305E26B0869C673DD1160866C90A@qq.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When using an 802.1ad bridge with vlan_tunnel, the C-VLAN tag is
incorrectly stripped from frames during egress processing.
br_handle_egress_vlan_tunnel() uses skb_vlan_pop() to remove the S-VLAN
from hwaccel before VXLAN encapsulation. However, skb_vlan_pop() also
moves any "next" VLAN from the payload into hwaccel:
/* move next vlan tag to hw accel tag */
__skb_vlan_pop(skb, &vlan_tci);
__vlan_hwaccel_put_tag(skb, vlan_proto, vlan_tci);
For QinQ frames where the C-VLAN sits in the payload, this moves it to
hwaccel where it gets lost during VXLAN encapsulation.
Fix by calling __vlan_hwaccel_clear_tag() directly, which clears only
the hwaccel S-VLAN and leaves the payload untouched.
This path is only taken when vlan_tunnel is enabled and tunnel_info
is configured, so 802.1Q bridges are unaffected.
Tested with 802.1ad bridge + VXLAN vlan_tunnel, verified C-VLAN
preserved in VXLAN payload via tcpdump.
Fixes: 11538d039a ("bridge: vlan dst_metadata hooks in ingress and egress paths")
Signed-off-by: Alexandre Knecht <knecht.alexandre@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20251228020057.2788865-1-knecht.alexandre@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The build can currently fail with
ld: drivers/net/ethernet/broadcom/bnge/bnge_auxr.o: in function `bnge_rdma_aux_device_add':
bnge_auxr.c:(.text+0x366): undefined reference to `__auxiliary_device_add'
ld: drivers/net/ethernet/broadcom/bnge/bnge_auxr.o: in function `bnge_rdma_aux_device_init':
bnge_auxr.c:(.text+0x43c): undefined reference to `auxiliary_device_init'
if BNGE is enabled but no other driver pulls in AUXILIARY_BUS.
Select AUXILIARY_BUS in BNGE like in all other drivers which create
an auxiliary_device.
Fixes: 8ac050ec3b ("bng_en: Add RoCE aux device support")
Signed-off-by: Markus Blöchl <markus@blochl.de>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Link: https://patch.msgid.link/20251228-bnge_aux_bus-v1-1-82e273ebfdac@blochl.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
devlink_alloc() may return NULL on allocation failure, but
prestera_devlink_alloc() unconditionally calls devlink_priv() on
the returned pointer.
This leads to a NULL pointer dereference if devlink allocation fails.
Add a check for a NULL devlink pointer and return NULL early to avoid
the crash.
Fixes: 34dd1710f5 ("net: marvell: prestera: Add basic devlink support")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Acked-by: Elad Nachman <enachman@marvell.com>
Link: https://patch.msgid.link/20251230052124.897012-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
for the iwlwifi issue you reported.
Current release - regressions:
- core: avoid prefetching NULL pointers
- wifi:
- iwlwifi: implement settime64 as stub for MVM/MLD PTP
- mac80211: fix list iteration in ieee80211_add_virtual_monitor()
- handshake: fix null-ptr-deref in handshake_complete()
- eth: mana: fix use-after-free in reset service rescan path
Previous releases - regressions:
- openvswitch: avoid needlessly taking the RTNL on vport destroy
- dsa: properly keep track of conduit reference
- ipv4:
- fix reference count leak when using error routes with nexthop objects
- fib: restore ECMP balance from loopback
- mptcp: ensure context reset on disconnect()
- bluetooth: fix potential UaF in btusb
- nfc: fix deadlock between nfc_unregister_device and rfkill_fop_write
- eth: gve: defer interrupt enabling until NAPI registration
- eth: i40e: fix scheduling in set_rx_mode
- eth: macb: relocate mog_init_rings() callback from macb_mac_link_up() to macb_open()
- eth: rtl8150: fix memory leak on usb_submit_urb() failure
- wifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()
Previous releases - always broken:
- ip6_gre: make ip6gre_header() robust
- ipv6: fix a BUG in rt6_get_pcpu_route() under PREEMPT_RT
- af_unix: don't post cmsg for SO_INQ unless explicitly asked for
- phy: mediatek: fix nvmem cell reference leak in mt798x_phy_calibration
- wifi: mac80211: discard beacon frames to non-broadcast address
- eth: iavf: fix off-by-one issues in iavf_config_rss_reg()
- eth: stmmac: fix the crash issue for zero copy XDP_TX action
- eth: team: fix check for port enabled in team_queue_override_port_prio_changed()
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from Bluetooth and WiFi. Notably this includes the fix
for the iwlwifi issue you reported.
Current release - regressions:
- core: avoid prefetching NULL pointers
- wifi:
- iwlwifi: implement settime64 as stub for MVM/MLD PTP
- mac80211: fix list iteration in ieee80211_add_virtual_monitor()
- handshake: fix null-ptr-deref in handshake_complete()
- eth: mana: fix use-after-free in reset service rescan path
Previous releases - regressions:
- openvswitch: avoid needlessly taking the RTNL on vport destroy
- dsa: properly keep track of conduit reference
- ipv4:
- fix error route reference count leak with nexthop objects
- fib: restore ECMP balance from loopback
- mptcp: ensure context reset on disconnect()
- bluetooth: fix potential UaF in btusb
- nfc: fix deadlock between nfc_unregister_device and
rfkill_fop_write
- eth:
- gve: defer interrupt enabling until NAPI registration
- i40e: fix scheduling in set_rx_mode
- macb: relocate mog_init_rings() callback from macb_mac_link_up()
to macb_open()
- rtl8150: fix memory leak on usb_submit_urb() failure
- wifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()
Previous releases - always broken:
- ip6_gre: make ip6gre_header() robust
- ipv6: fix a BUG in rt6_get_pcpu_route() under PREEMPT_RT
- af_unix: don't post cmsg for SO_INQ unless explicitly asked for
- phy: mediatek: fix nvmem cell reference leak in
mt798x_phy_calibration
- wifi: mac80211: discard beacon frames to non-broadcast address
- eth:
- iavf: fix off-by-one issues in iavf_config_rss_reg()
- stmmac: fix the crash issue for zero copy XDP_TX action
- team: fix check for port enabled when priority changes"
* tag 'net-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (64 commits)
ipv6: fix a BUG in rt6_get_pcpu_route() under PREEMPT_RT
net: rose: fix invalid array index in rose_kill_by_device()
net: enetc: do not print error log if addr is 0
net: macb: Relocate mog_init_rings() callback from macb_mac_link_up() to macb_open()
selftests: fib_test: Add test case for ipv4 multi nexthops
net: fib: restore ECMP balance from loopback
selftests: fib_nexthops: Add test cases for error routes deletion
ipv4: Fix reference count leak when using error routes with nexthop objects
net: usb: sr9700: fix incorrect command used to write single register
ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr()
usbnet: avoid a possible crash in dql_completed()
gve: defer interrupt enabling until NAPI registration
net: stmmac: fix the crash issue for zero copy XDP_TX action
octeontx2-pf: fix "UBSAN: shift-out-of-bounds error"
af_unix: don't post cmsg for SO_INQ unless explicitly asked for
net: mana: Fix use-after-free in reset service rescan path
net: avoid prefetching NULL pointers
net: bridge: Describe @tunnel_hash member in net_bridge_vlan_group struct
net: nfc: fix deadlock between nfc_unregister_device and rfkill_fop_write
net: usb: asix: validate PHY address before use
...
On PREEMPT_RT kernels, after rt6_get_pcpu_route() returns NULL, the
current task can be preempted. Another task running on the same CPU
may then execute rt6_make_pcpu_route() and successfully install a
pcpu_rt entry. When the first task resumes execution, its cmpxchg()
in rt6_make_pcpu_route() will fail because rt6i_pcpu is no longer
NULL, triggering the BUG_ON(prev). It's easy to reproduce it by adding
mdelay() after rt6_get_pcpu_route().
Using preempt_disable/enable is not appropriate here because
ip6_rt_pcpu_alloc() may sleep.
Fix this by handling the cmpxchg() failure gracefully on PREEMPT_RT:
free our allocation and return the existing pcpu_rt installed by
another task. The BUG_ON is replaced by WARN_ON_ONCE for non-PREEMPT_RT
kernels where such races should not occur.
Link: https://syzkaller.appspot.com/bug?extid=9b35e9bc0951140d13e6
Fixes: d2d6422f8b ("x86: Allow to enable PREEMPT_RT.")
Reported-by: syzbot+9b35e9bc0951140d13e6@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/6918cd88.050a0220.1c914e.0045.GAE@google.com/T/
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Link: https://patch.msgid.link/20251223051413.124687-1-jiayuan.chen@linux.dev
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
rose_kill_by_device() collects sockets into a local array[] and then
iterates over them to disconnect sockets bound to a device being brought
down.
The loop mistakenly indexes array[cnt] instead of array[i]. For cnt <
ARRAY_SIZE(array), this reads an uninitialized entry; for cnt ==
ARRAY_SIZE(array), it is an out-of-bounds read. Either case can lead to
an invalid socket pointer dereference and also leaks references taken
via sock_hold().
Fix the index to use i.
Fixes: 64b8bc7d5f ("net/rose: fix races in rose_kill_by_device()")
Co-developed-by: Fatma Alwasmi <falwasmi@purdue.edu>
Signed-off-by: Fatma Alwasmi <falwasmi@purdue.edu>
Signed-off-by: Pwnverse <stanksal@purdue.edu>
Link: https://patch.msgid.link/20251222212227.4116041-1-ritviktanksalkar@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
A value of 0 for addr indicates that the IEB_LBCR register does not
need to be configured, as its default value is 0. However, the driver
will print an error log if addr is 0, so this issue needs to be fixed.
Fixes: 50bfd9c06f ("net: enetc: set external PHY address in IERB for i.MX94 ENETC")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20251222022628.4016403-1-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In the non-RT kernel, local_bh_disable() merely disables preemption,
whereas it maps to an actual spin lock in the RT kernel. Consequently,
when attempting to refill RX buffers via netdev_alloc_skb() in
macb_mac_link_up(), a deadlock scenario arises as follows:
WARNING: possible circular locking dependency detected
6.18.0-08691-g2061f18ad76e #39 Not tainted
------------------------------------------------------
kworker/0:0/8 is trying to acquire lock:
ffff00080369bbe0 (&bp->lock){+.+.}-{3:3}, at: macb_start_xmit+0x808/0xb7c
but task is already holding lock:
ffff000803698e58 (&queue->tx_ptr_lock){+...}-{3:3}, at: macb_start_xmit
+0x148/0xb7c
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&queue->tx_ptr_lock){+...}-{3:3}:
rt_spin_lock+0x50/0x1f0
macb_start_xmit+0x148/0xb7c
dev_hard_start_xmit+0x94/0x284
sch_direct_xmit+0x8c/0x37c
__dev_queue_xmit+0x708/0x1120
neigh_resolve_output+0x148/0x28c
ip6_finish_output2+0x2c0/0xb2c
__ip6_finish_output+0x114/0x308
ip6_output+0xc4/0x4a4
mld_sendpack+0x220/0x68c
mld_ifc_work+0x2a8/0x4f4
process_one_work+0x20c/0x5f8
worker_thread+0x1b0/0x35c
kthread+0x144/0x200
ret_from_fork+0x10/0x20
-> #2 (_xmit_ETHER#2){+...}-{3:3}:
rt_spin_lock+0x50/0x1f0
sch_direct_xmit+0x11c/0x37c
__dev_queue_xmit+0x708/0x1120
neigh_resolve_output+0x148/0x28c
ip6_finish_output2+0x2c0/0xb2c
__ip6_finish_output+0x114/0x308
ip6_output+0xc4/0x4a4
mld_sendpack+0x220/0x68c
mld_ifc_work+0x2a8/0x4f4
process_one_work+0x20c/0x5f8
worker_thread+0x1b0/0x35c
kthread+0x144/0x200
ret_from_fork+0x10/0x20
-> #1 ((softirq_ctrl.lock)){+.+.}-{3:3}:
lock_release+0x250/0x348
__local_bh_enable_ip+0x7c/0x240
__netdev_alloc_skb+0x1b4/0x1d8
gem_rx_refill+0xdc/0x240
gem_init_rings+0xb4/0x108
macb_mac_link_up+0x9c/0x2b4
phylink_resolve+0x170/0x614
process_one_work+0x20c/0x5f8
worker_thread+0x1b0/0x35c
kthread+0x144/0x200
ret_from_fork+0x10/0x20
-> #0 (&bp->lock){+.+.}-{3:3}:
__lock_acquire+0x15a8/0x2084
lock_acquire+0x1cc/0x350
rt_spin_lock+0x50/0x1f0
macb_start_xmit+0x808/0xb7c
dev_hard_start_xmit+0x94/0x284
sch_direct_xmit+0x8c/0x37c
__dev_queue_xmit+0x708/0x1120
neigh_resolve_output+0x148/0x28c
ip6_finish_output2+0x2c0/0xb2c
__ip6_finish_output+0x114/0x308
ip6_output+0xc4/0x4a4
mld_sendpack+0x220/0x68c
mld_ifc_work+0x2a8/0x4f4
process_one_work+0x20c/0x5f8
worker_thread+0x1b0/0x35c
kthread+0x144/0x200
ret_from_fork+0x10/0x20
other info that might help us debug this:
Chain exists of:
&bp->lock --> _xmit_ETHER#2 --> &queue->tx_ptr_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&queue->tx_ptr_lock);
lock(_xmit_ETHER#2);
lock(&queue->tx_ptr_lock);
lock(&bp->lock);
*** DEADLOCK ***
Call trace:
show_stack+0x18/0x24 (C)
dump_stack_lvl+0xa0/0xf0
dump_stack+0x18/0x24
print_circular_bug+0x28c/0x370
check_noncircular+0x198/0x1ac
__lock_acquire+0x15a8/0x2084
lock_acquire+0x1cc/0x350
rt_spin_lock+0x50/0x1f0
macb_start_xmit+0x808/0xb7c
dev_hard_start_xmit+0x94/0x284
sch_direct_xmit+0x8c/0x37c
__dev_queue_xmit+0x708/0x1120
neigh_resolve_output+0x148/0x28c
ip6_finish_output2+0x2c0/0xb2c
__ip6_finish_output+0x114/0x308
ip6_output+0xc4/0x4a4
mld_sendpack+0x220/0x68c
mld_ifc_work+0x2a8/0x4f4
process_one_work+0x20c/0x5f8
worker_thread+0x1b0/0x35c
kthread+0x144/0x200
ret_from_fork+0x10/0x20
Notably, invoking the mog_init_rings() callback upon link establishment
is unnecessary. Instead, we can exclusively call mog_init_rings() within
the ndo_open() callback. This adjustment resolves the deadlock issue.
Furthermore, since MACB_CAPS_MACB_IS_EMAC cases do not use mog_init_rings()
when opening the network interface via at91ether_open(), moving
mog_init_rings() to macb_open() also eliminates the MACB_CAPS_MACB_IS_EMAC
check.
Fixes: 633e98a711 ("net: macb: use resolved link config in mac_link_up()")
Cc: stable@vger.kernel.org
Suggested-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Link: https://patch.msgid.link/20251222015624.1994551-1-xiaolei.wang@windriver.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The test checks that with multi nexthops route the preferred route is the
one which matches source ip. In case when source ip is on dummy
interface, it checks that the routes are balanced.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20251221192639.3911901-2-vadim.fedorenko@linux.dev
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Preference of nexthop with source address broke ECMP for packets with
source addresses which are not in the broadcast domain, but rather added
to loopback/dummy interfaces. Original behaviour was to balance over
nexthops while now it uses the latest nexthop from the group. To fix the
issue introduce next hop scoring system where next hops with source
address equal to requested will always have higher priority.
For the case with 198.51.100.1/32 assigned to dummy0 and routed using
192.0.2.0/24 and 203.0.113.0/24 networks:
2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether d6:54:8a:ff:78:f5 brd ff:ff:ff:ff:ff:ff
inet 198.51.100.1/32 scope global dummy0
valid_lft forever preferred_lft forever
7: veth1@if6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 06:ed:98:87:6d:8a brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 192.0.2.2/24 scope global veth1
valid_lft forever preferred_lft forever
inet6 fe80::4ed:98ff:fe87:6d8a/64 scope link proto kernel_ll
valid_lft forever preferred_lft forever
9: veth3@if8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether ae:75:23:38:a0:d2 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet 203.0.113.2/24 scope global veth3
valid_lft forever preferred_lft forever
inet6 fe80::ac75:23ff:fe38:a0d2/64 scope link proto kernel_ll
valid_lft forever preferred_lft forever
~ ip ro list:
default
nexthop via 192.0.2.1 dev veth1 weight 1
nexthop via 203.0.113.1 dev veth3 weight 1
192.0.2.0/24 dev veth1 proto kernel scope link src 192.0.2.2
203.0.113.0/24 dev veth3 proto kernel scope link src 203.0.113.2
before:
for i in {1..255} ; do ip ro get 10.0.0.$i; done | grep veth | awk ' {print $(NF-2)}' | sort | uniq -c:
255 veth3
after:
for i in {1..255} ; do ip ro get 10.0.0.$i; done | grep veth | awk ' {print $(NF-2)}' | sort | uniq -c:
122 veth1
133 veth3
Fixes: 32607a332c ("ipv4: prefer multipath nexthop that matches source address")
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20251221192639.3911901-1-vadim.fedorenko@linux.dev
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When a nexthop object is deleted, it is marked as dead and then
fib_table_flush() is called to flush all the routes that are using the
dead nexthop.
The current logic in fib_table_flush() is to only flush error routes
(e.g., blackhole) when it is called as part of network namespace
dismantle (i.e., with flush_all=true). Therefore, error routes are not
flushed when their nexthop object is deleted:
# ip link add name dummy1 up type dummy
# ip nexthop add id 1 dev dummy1
# ip route add 198.51.100.1/32 nhid 1
# ip route add blackhole 198.51.100.2/32 nhid 1
# ip nexthop del id 1
# ip route show
blackhole 198.51.100.2 nhid 1 dev dummy1
As such, they keep holding a reference on the nexthop object which in
turn holds a reference on the nexthop device, resulting in a reference
count leak:
# ip link del dev dummy1
[ 70.516258] unregister_netdevice: waiting for dummy1 to become free. Usage count = 2
Fix by flushing error routes when their nexthop is marked as dead.
IPv6 does not suffer from this problem.
Fixes: 493ced1ac4 ("ipv4: Allow routes to use nexthop objects")
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Closes: https://lore.kernel.org/netdev/d943f806-4da6-4970-ac28-b9373b0e63ac@I-love.SAKURA.ne.jp/
Reported-by: syzbot+881d65229ca4f9ae8c84@syzkaller.appspotmail.com
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20251221144829.197694-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This fixes the device failing to initialize with "error reading MAC
address" for me, probably because the incorrect write of NCR_RST to
SR_NCR is not actually resetting the device.
Fixes: c9b37458e9 ("USB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support")
Cc: stable@vger.kernel.org
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20251221082400.50688-1-enelsonmoore@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
- Revert commit 9362d34acf ("scripts/clang-tools: Handle included .c
files in gen_compile_commands") which is reported to cause false
entries for some files.
- Fix compilation of dtb specified on command-line without make rule
- mcb: Add missing modpost build support
Signed-off-by: Nicolas Schier <nsc@kernel.org>
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Merge tag 'kbuild-fixes-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nicolas Schier:
- Revert commit "scripts/clang-tools: Handle included .c files in
gen_compile_commands" which is reported to cause false entries for
some files.
- Fix compilation of dtb specified on command-line without make rule
- mcb: Add missing modpost build support
* tag 'kbuild-fixes-6.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
mcb: Add missing modpost build support
kbuild: fix compilation of dtb specified on command-line without make rule
Revert "scripts/clang-tools: Handle included .c files in gen_compile_commands"
There's a three patch series from Jiayuan Chen which fixes some issues
with KASAN and vmalloc. Apart from that it's the usual shower of
singletons - please see the respective changelogs for details.
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Merge tag 'mm-hotfixes-stable-2025-12-28-21-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"27 hotfixes. 12 are cc:stable, 18 are MM.
There's a patch series from Jiayuan Chen which fixes some
issues with KASAN and vmalloc. Apart from that it's the usual
shower of singletons - please see the respective changelogs
for details"
* tag 'mm-hotfixes-stable-2025-12-28-21-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (27 commits)
mm/ksm: fix pte_unmap_unlock of wrong address in break_ksm_pmd_entry
mm/page_owner: fix memory leak in page_owner_stack_fops->release()
mm/memremap: fix spurious large folio warning for FS-DAX
MAINTAINERS: notify the "Device Memory" community of memory hotplug changes
sparse: update MAINTAINERS info
mm/page_alloc: report 1 as zone_batchsize for !CONFIG_MMU
mm: consider non-anon swap cache folios in folio_expected_ref_count()
rust: maple_tree: rcu_read_lock() in destructor to silence lockdep
mm: memcg: fix unit conversion for K() macro in OOM log
mm: fixup pfnmap memory failure handling to use pgoff
tools/mm/page_owner_sort: fix timestamp comparison for stable sorting
selftests/mm: fix thread state check in uffd-unit-tests
kernel/kexec: fix IMA when allocation happens in CMA area
kernel/kexec: change the prototype of kimage_map_segment()
MAINTAINERS: add ABI headers to KHO and LIVE UPDATE
.mailmap: remove one of the entries for WangYuli
mm/damon/vaddr: fix missing pte_unmap_unlock in damos_va_migrate_pmd_entry()
MAINTAINERS: update one straggling entry for Bartosz Golaszewski
mm/page_alloc: change all pageblocks migrate type on coalescing
mm: leafops.h: correct kernel-doc function param. names
...
There exists a kernel oops caused by a BUG_ON(nhead < 0) at
net/core/skbuff.c:2232 in pskb_expand_head().
This bug is triggered as part of the calipso_skbuff_setattr()
routine when skb_cow() is passed headroom > INT_MAX
(i.e. (int)(skb_headroom(skb) + len_delta) < 0).
The root cause of the bug is due to an implicit integer cast in
__skb_cow(). The check (headroom > skb_headroom(skb)) is meant to ensure
that delta = headroom - skb_headroom(skb) is never negative, otherwise
we will trigger a BUG_ON in pskb_expand_head(). However, if
headroom > INT_MAX and delta <= -NET_SKB_PAD, the check passes, delta
becomes negative, and pskb_expand_head() is passed a negative value for
nhead.
Fix the trigger condition in calipso_skbuff_setattr(). Avoid passing
"negative" headroom sizes to skb_cow() within calipso_skbuff_setattr()
by only using skb_cow() to grow headroom.
PoC:
Using `netlabelctl` tool:
netlabelctl map del default
netlabelctl calipso add pass doi:7
netlabelctl map add default address:0::1/128 protocol:calipso,7
Then run the following PoC:
int fd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
// setup msghdr
int cmsg_size = 2;
int cmsg_len = 0x60;
struct msghdr msg;
struct sockaddr_in6 dest_addr;
struct cmsghdr * cmsg = (struct cmsghdr *) calloc(1,
sizeof(struct cmsghdr) + cmsg_len);
msg.msg_name = &dest_addr;
msg.msg_namelen = sizeof(dest_addr);
msg.msg_iov = NULL;
msg.msg_iovlen = 0;
msg.msg_control = cmsg;
msg.msg_controllen = cmsg_len;
msg.msg_flags = 0;
// setup sockaddr
dest_addr.sin6_family = AF_INET6;
dest_addr.sin6_port = htons(31337);
dest_addr.sin6_flowinfo = htonl(31337);
dest_addr.sin6_addr = in6addr_loopback;
dest_addr.sin6_scope_id = 31337;
// setup cmsghdr
cmsg->cmsg_len = cmsg_len;
cmsg->cmsg_level = IPPROTO_IPV6;
cmsg->cmsg_type = IPV6_HOPOPTS;
char * hop_hdr = (char *)cmsg + sizeof(struct cmsghdr);
hop_hdr[1] = 0x9; //set hop size - (0x9 + 1) * 8 = 80
sendmsg(fd, &msg, 0);
Fixes: 2917f57b6b ("calipso: Allow the lsm to label the skbuff directly.")
Suggested-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Will Rosenberg <whrosenb@asu.edu>
Acked-by: Paul Moore <paul@paul-moore.com>
Link: https://patch.msgid.link/20251219173637.797418-1-whrosenb@asu.edu
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
syzbot reported a crash [1] in dql_completed() after recent usbnet
BQL adoption.
The reason for the crash is that netdev_reset_queue() is called too soon.
It should be called after cancel_work_sync(&dev->bh_work) to make
sure no more TX completion can happen.
[1]
kernel BUG at lib/dynamic_queue_limits.c:99 !
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5197 Comm: udevd Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:dql_completed+0xbe1/0xbf0 lib/dynamic_queue_limits.c:99
Call Trace:
<IRQ>
netdev_tx_completed_queue include/linux/netdevice.h:3864 [inline]
netdev_completed_queue include/linux/netdevice.h:3894 [inline]
usbnet_bh+0x793/0x1020 drivers/net/usb/usbnet.c:1601
process_one_work kernel/workqueue.c:3257 [inline]
process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
bh_worker+0x2b1/0x600 kernel/workqueue.c:3611
tasklet_action+0xc/0x70 kernel/softirq.c:952
handle_softirqs+0x27d/0x850 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
Fixes: 7ff14c5204 ("usbnet: Add support for Byte Queue Limits (BQL)")
Reported-by: syzbot+5b55e49f8bbd84631a9c@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/6945644f.a70a0220.207337.0113.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Simon Schippers <simon.schippers@tu-dortmund.de>
Link: https://patch.msgid.link/20251219144459.692715-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Currently, interrupts are automatically enabled immediately upon
request. This allows interrupt to fire before the associated NAPI
context is fully initialized and cause failures like below:
[ 0.946369] Call Trace:
[ 0.946369] <IRQ>
[ 0.946369] __napi_poll+0x2a/0x1e0
[ 0.946369] net_rx_action+0x2f9/0x3f0
[ 0.946369] handle_softirqs+0xd6/0x2c0
[ 0.946369] ? handle_edge_irq+0xc1/0x1b0
[ 0.946369] __irq_exit_rcu+0xc3/0xe0
[ 0.946369] common_interrupt+0x81/0xa0
[ 0.946369] </IRQ>
[ 0.946369] <TASK>
[ 0.946369] asm_common_interrupt+0x22/0x40
[ 0.946369] RIP: 0010:pv_native_safe_halt+0xb/0x10
Use the `IRQF_NO_AUTOEN` flag when requesting interrupts to prevent auto
enablement and explicitly enable the interrupt in NAPI initialization
path (and disable it during NAPI teardown).
This ensures that interrupt lifecycle is strictly coupled with
readiness of NAPI context.
Cc: stable@vger.kernel.org
Fixes: 1dfc2e4611 ("gve: Refactor napi add and remove functions")
Signed-off-by: Ankit Garg <nktgrg@google.com>
Reviewed-by: Jordan Rhee <jordanrhee@google.com>
Reviewed-by: Joshua Washington <joshwash@google.com>
Signed-off-by: Harshitha Ramamurthy <hramamurthy@google.com>
Link: https://patch.msgid.link/20251219102945.2193617-1-hramamurthy@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
There is a crash issue when running zero copy XDP_TX action, the crash
log is shown below.
[ 216.122464] Unable to handle kernel paging request at virtual address fffeffff80000000
[ 216.187524] Internal error: Oops: 0000000096000144 [#1] SMP
[ 216.301694] Call trace:
[ 216.304130] dcache_clean_poc+0x20/0x38 (P)
[ 216.308308] __dma_sync_single_for_device+0x1bc/0x1e0
[ 216.313351] stmmac_xdp_xmit_xdpf+0x354/0x400
[ 216.317701] __stmmac_xdp_run_prog+0x164/0x368
[ 216.322139] stmmac_napi_poll_rxtx+0xba8/0xf00
[ 216.326576] __napi_poll+0x40/0x218
[ 216.408054] Kernel panic - not syncing: Oops: Fatal exception in interrupt
For XDP_TX action, the xdp_buff is converted to xdp_frame by
xdp_convert_buff_to_frame(). The memory type of the resulting xdp_frame
depends on the memory type of the xdp_buff. For page pool based xdp_buff
it produces xdp_frame with memory type MEM_TYPE_PAGE_POOL. For zero copy
XSK pool based xdp_buff it produces xdp_frame with memory type
MEM_TYPE_PAGE_ORDER0. However, stmmac_xdp_xmit_back() does not check the
memory type and always uses the page pool type, this leads to invalid
mappings and causes the crash. Therefore, check the xdp_buff memory type
in stmmac_xdp_xmit_back() to fix this issue.
Fixes: bba2556efa ("net: stmmac: Enable RX via AF_XDP zero-copy")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Hariprasad Kelam <hkelam@marvell.com>
Link: https://patch.msgid.link/20251204071332.1907111-1-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
also some long-standing issues:
- cfg80211:
- fix an issue with overly long SSIDs
- mac80211:
- long-standing beacon protection issue on some devices
- for for a multi-BSSID AP-side issue
- fix a syzbot warning on OCB (not really used in practice)
- remove WARN on connections using disabled channels,
as that can happen due to changes in the disable flag
- fix monitor mode list iteration
- iwlwifi:
- fix firmware loading on certain (really old) devices
- add settime64 to PTP clock to avoid a warning and clock
registration failure, but it's not actually supported
- rtw88:
- remove WQ_UNBOUND since it broke USB adapters
(because it can't be used with WQ_BH)
- fix SDIO issues with certain devices
- rtl8192cu: fix TID array out-of-bounds (since 6.9)
- wlcore (TI): add missing skb push headroom increase
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Merge tag 'wireless-2025-12-17' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Various fixes all over, most are recent regressions but
also some long-standing issues:
- cfg80211:
- fix an issue with overly long SSIDs
- mac80211:
- long-standing beacon protection issue on some devices
- for for a multi-BSSID AP-side issue
- fix a syzbot warning on OCB (not really used in practice)
- remove WARN on connections using disabled channels,
as that can happen due to changes in the disable flag
- fix monitor mode list iteration
- iwlwifi:
- fix firmware loading on certain (really old) devices
- add settime64 to PTP clock to avoid a warning and clock
registration failure, but it's not actually supported
- rtw88:
- remove WQ_UNBOUND since it broke USB adapters
(because it can't be used with WQ_BH)
- fix SDIO issues with certain devices
- rtl8192cu: fix TID array out-of-bounds (since 6.9)
- wlcore (TI): add missing skb push headroom increase
* tag 'wireless-2025-12-17' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: iwlwifi: Implement settime64 as stub for MVM/MLD PTP
wifi: iwlwifi: Fix firmware version handling
wifi: mac80211: ocb: skip rx_no_sta when interface is not joined
wifi: mac80211: do not use old MBSSID elements
wifi: mac80211: don't WARN for connections on invalid channels
wifi: wlcore: ensure skb headroom before skb_push
wifi: cfg80211: sme: store capped length in __cfg80211_connect_result()
wifi: mac80211: fix list iteration in ieee80211_add_virtual_monitor()
wifi: mac80211: Discard Beacon frames to non-broadcast address
Revert "wifi: rtw88: add WQ_UNBOUND to alloc_workqueue users"
wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()
wifi: rtw88: limit indirect IO under powered off for RTL8822CS
====================
Link: https://patch.msgid.link/20251217201441.59876-3-johannes@sipsolutions.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This patch ensures that the RX ring size (rx_pending) is not
set below the permitted length. This avoids UBSAN
shift-out-of-bounds errors when users passes small or zero
ring sizes via ethtool -G.
Fixes: d45d897984 ("octeontx2-pf: Add basic ethtool support")
Signed-off-by: Anshumali Gaur <agaur@marvell.com>
Link: https://patch.msgid.link/20251219062226.524844-1-agaur@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
- Fix uninitialized @ret on alloc_percpu() failure leading to ERR_PTR(0).
- Fix PREEMPT_RT warning when bypass load balancer sends IPI to offline
CPU by using resched_cpu() instead of resched_curr().
- Fix comment referring to renamed function.
- Update scx_show_state.py for scx_root and scx_aborting changes.
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Merge tag 'sched_ext-for-6.19-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
- Fix uninitialized @ret on alloc_percpu() failure leading to
ERR_PTR(0)
- Fix PREEMPT_RT warning when bypass load balancer sends IPI to offline
CPU by using resched_cpu() instead of resched_curr()
- Fix comment referring to renamed function
- Update scx_show_state.py for scx_root and scx_aborting changes
* tag 'sched_ext-for-6.19-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
tools/sched_ext: update scx_show_state.py for scx_aborting change
tools/sched_ext: fix scx_show_state.py for scx_root change
sched_ext: Use the resched_cpu() to replace resched_curr() in the bypass_lb_node()
sched_ext: Fix some comments in ext.c
sched_ext: fix uninitialized ret on alloc_percpu() failure
- cpuset: Fix spurious warning when disabling remote partition after CPU
hotplug leaves subpartitions_cpus empty. Guard the warning and invalidate
affected partitions.
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Merge tag 'cgroup-for-6.19-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
- Fix a spurious cpuset warning when disabling remote partition after
CPU hotplug leaves subpartitions_cpus empty. Guard the warning and
invalidate affected partitions.
* tag 'cgroup-for-6.19-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: fix warning when disabling remote partition
- Fix UAF in seqiv.
- Fix regression in hisilicon.
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Merge tag 'v6.19-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- Fix UAF in seqiv
- Fix regression in hisilicon
* tag 'v6.19-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: hisilicon/qm - fix incorrect judgment in qm_get_complete_eqe_num()
crypto: seqiv - Do not use req->iv after crypto_aead_encrypt
Here are some small USB fixes, and bunch of reverts for 6.19-rc3.
Included in here are:
- reverts of some typec ucsi driver changes that had a lot of
regression reports after -rc1. Let's just revert it all for now and
it will come back in a way that is better tested.
- other typec bugfixes
- usb-storage quirk fixups
- dwc3 driver fix
- other minor USB fixes for reported problems.
All of these have passed 0-day testing and individual testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes, and bunch of reverts for 6.19-rc3.
Included in here are:
- reverts of some typec ucsi driver changes that had a lot of
regression reports after -rc1. Let's just revert it all for now and
it will come back in a way that is better tested.
- other typec bugfixes
- usb-storage quirk fixups
- dwc3 driver fix
- other minor USB fixes for reported problems.
All of these have passed 0-day testing and individual testing"
* tag 'usb-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
Revert "usb: typec: ucsi: Update UCSI structure to have message in and message out fields"
Revert "usb: typec: ucsi: Add support for message out data structure"
Revert "usb: typec: ucsi: Enable debugfs for message_out data structure"
Revert "usb: typec: ucsi: Add support for SET_PDOS command"
Revert "usb: typec: ucsi: Fix null pointer dereference in ucsi_sync_control_common"
Revert "usb: typec: ucsi: Get connector status after enable notifications"
usb: ohci-nxp: clean up probe error labels
usb: gadget: lpc32xx_udc: clean up probe error labels
usb: ohci-nxp: fix device leak on probe failure
usb: phy: isp1301: fix non-OF device reference imbalance
usb: gadget: lpc32xx_udc: fix clock imbalance in error path
usb: typec: ucsi: Get connector status after enable notifications
usb: usb-storage: Maintain minimal modifications to the bcdDevice range.
usb: dwc3: of-simple: fix clock resource leak in dwc3_of_simple_probe
usb: typec: ucsi: Fix null pointer dereference in ucsi_sync_control_common
USB: lpc32xx_udc: Fix error handling in probe
usb: typec: altmodes/displayport: Drop the device reference in dp_altmode_probe()
usb: phy: fsl-usb: Fix use-after-free in delayed work during device removal
usb: renesas_usbhs: Fix a resource leak in usbhs_pipe_malloc()
usb: typec: ucsi: huawei-gaokin: add DRM dependency
...
Here are some small serial driver fixes for some reported issues.
Included in here are:
- serial sysfs fwnode fix that was much reported
- sh-sci driver fix
- serial device init bugfix
- 8250 bugfix
- xilinx_uartps bugfix
All of these have passed 0-day testing and individual testing
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fixes from Greg KH:
"Here are some small serial driver fixes for some reported issues.
Included in here are:
- serial sysfs fwnode fix that was much reported
- sh-sci driver fix
- serial device init bugfix
- 8250 bugfix
- xilinx_uartps bugfix
All of these have passed 0-day testing and individual testing"
* tag 'tty-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: xilinx_uartps: fix rs485 delay_rts_after_send
serial: sh-sci: Check that the DMA cookie is valid
serial: core: Fix serial device initialization
serial: 8250: longson: Fix NULL vs IS_ERR() bug in probe
serial: core: Restore sysfs fwnode information
A fix for PCI driver for Texas Instruments PCILyx series. The driver had
a bug where it allocated a DMA-coherent buffer of 16 KB but released it
using PAGE_SIZE. This disproportion was reported in 2020, but the fix was
never merged. It is finally resolved.
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Merge tag 'firewire-fixes-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
"A fix for PCI driver for Texas Instruments PCILyx series.
The driver had a bug where it allocated a DMA-coherent buffer of 16 KB
but released it using PAGE_SIZE. This disproportion was reported in
2020, but the fix was never merged. It is finally resolved"
* tag 'firewire-fixes-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: nosy: Fix dma_free_coherent() size
- Add probing and userspace reporting support for the standard RISC-V
ISA extensions Zilsd and Zclsd, which implement load/store dual
instructions on RV32
- Abstract the register saving code in setup_sigcontext() so it can be
used for stateful RISC-V ISA extensions beyond the vector extension
- Add the SBI extension ID and some initial data structure definitions
for the RISC-V standard SBI debug trigger extension
- Clean up some code slightly: change some page table functions to
avoid atomic operations oinn !SMP and to avoid unnecessary casts to
atomic_long_t; and use the existing RISCV_FULL_BARRIER macro in
place of some open-coded "fence rw,rw" instructions
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Merge tag 'riscv-for-linus-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"Nothing exotic here; these are the cleanup and new ISA extension
probing patches (not including CFI):
- Add probing and userspace reporting support for the standard RISC-V
ISA extensions Zilsd and Zclsd, which implement load/store dual
instructions on RV32
- Abstract the register saving code in setup_sigcontext() so it can
be used for stateful RISC-V ISA extensions beyond the vector
extension
- Add the SBI extension ID and some initial data structure
definitions for the RISC-V standard SBI debug trigger extension
- Clean up some code slightly: change some page table functions to
avoid atomic operations oinn !SMP and to avoid unnecessary casts to
atomic_long_t; and use the existing RISCV_FULL_BARRIER macro in
place of some open-coded 'fence rw,rw' instructions"
* tag 'riscv-for-linus-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Add SBI debug trigger extension and function ids
riscv/atomic.h: use RISCV_FULL_BARRIER in _arch_atomic* function.
riscv: hwprobe: export Zilsd and Zclsd ISA extensions
riscv: add ISA extension parsing for Zilsd and Zclsd
dt-bindings: riscv: add Zilsd and Zclsd extension descriptions
riscv: mm: use xchg() on non-atomic_long_t variables, not atomic_long_xchg()
riscv: mm: ptep_get_and_clear(): avoid atomic ops when !CONFIG_SMP
riscv: mm: pmdp_huge_get_and_clear(): avoid atomic ops when !CONFIG_SMP
riscv: signal: abstract header saving for setup_sigcontext
- Fix for kexec warning due to SMT disable or partial SMT enabled
- Handle font bitmap pointer with reloc_offset to fix boot crash
- Fix to enable cpuidle state for Power11
- Couple of misc fixes
Thanks to: Aboorva Devarajan, Aditya Bodkhe, Cedar Maxwell, Christian Zigotzky, Christophe Leroy, Christophe Leroy (CS GROUP), Finn Thain, Gopi Krishna Menon, Guenter Roeck, Jan Stancek, Joe Lawrence, Josh Poimboeuf, Justin M. Forbes, Madadi Vineeth Reddy, Naveen N Rao (AMD), Nysal Jan K.A., Sachin P Bappalige, Samir M, Sourabh Jain, Srikar Dronamraju, Stan Johnson
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Merge tag 'powerpc-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Madhavan Srinivasan:
- Fix for kexec warning due to SMT disable or partial SMT enabled
- Handle font bitmap pointer with reloc_offset to fix boot crash
- Fix to enable cpuidle state for Power11
- Couple of misc fixes
Thanks to Aboorva Devarajan, Aditya Bodkhe, Cedar Maxwell, Christian
Zigotzky, Christophe Leroy, Christophe Leroy (CS GROUP), Finn Thain,
Gopi Krishna Menon, Guenter Roeck, Jan Stancek, Joe Lawrence, Josh
Poimboeuf, Justin M. Forbes, Madadi Vineeth Reddy, Naveen N Rao (AMD),
Nysal Jan K.A., Sachin P Bappalige, Samir M, Sourabh Jain, Srikar
Dronamraju, and Stan Johnson
* tag 'powerpc-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/32: Restore disabling of interrupts at interrupt/syscall exit
powerpc/powernv: Enable cpuidle state detection for POWER11
powerpc: Add reloc_offset() to font bitmap pointer used for bootx_printf()
powerpc/tools: drop `-o pipefail` in gcc check scripts
selftests/powerpc/pmu/: Add check_extended_reg_test to .gitignore
powerpc/kexec: Enable SMT before waking offline CPUs
Commit 48e1267773 ("sched_ext: Introduce scx_sched") introduced
scx_root and removed scx_ops, causing scx_show_state.py to fail when
searching for the 'scx_ops' object. [1]
Fix by using 'scx_root' instead, with NULL pointer handling.
[1]
# drgn -s vmlinux ./tools/sched_ext/scx_show_state.py
Traceback (most recent call last):
File "/root/.venv/bin/drgn", line 8, in <module>
sys.exit(_main())
~~~~~^^
File "/root/.venv/lib64/python3.14/site-packages/drgn/cli.py", line 625, in _main
runpy.run_path(
~~~~~~~~~~~~~~^
script_path, init_globals={"prog": prog}, run_name="__main__"
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "<frozen runpy>", line 287, in run_path
File "<frozen runpy>", line 98, in _run_module_code
File "<frozen runpy>", line 88, in _run_code
File "./tools/sched_ext/scx_show_state.py", line 30, in <module>
ops = prog['scx_ops']
~~~~^^^^^^^^^^^
_drgn.ObjectNotFoundError: could not find 'scx_ops'
Fixes: 48e1267773 ("sched_ext: Introduce scx_sched")
Signed-off-by: Kohei Enju <enjuk@amazon.com>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
A previous commit added SO_INQ support for AF_UNIX (SOCK_STREAM), but it
posts a SCM_INQ cmsg even if just msg->msg_get_inq is set. This is
incorrect, as ->msg_get_inq is just the caller asking for the remainder
to be passed back in msg->msg_inq, it has nothing to do with cmsg. The
original commit states that this is done to make sockets
io_uring-friendly", but it's actually incorrect as io_uring doesn't use
cmsg headers internally at all, and it's actively wrong as this means
that cmsg's are always posted if someone does recvmsg via io_uring.
Fix that up by only posting a cmsg if u->recvmsg_inq is set.
Additionally, mirror how TCP handles inquiry handling in that it should
only be done for a successful return. This makes the logic for the two
identical.
Cc: stable@vger.kernel.org
Fixes: df30285b36 ("af_unix: Introduce SO_INQ.")
Reported-by: Julian Orth <ju.orth@gmail.com>
Link: https://github.com/axboe/liburing/issues/1509
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/07adc0c2-2c3b-4d08-8af1-1c466a40b6a8@kernel.dk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When mana_serv_reset() encounters -ETIMEDOUT or -EPROTO from
mana_gd_resume(), it performs a PCI rescan via mana_serv_rescan().
mana_serv_rescan() calls pci_stop_and_remove_bus_device(), which can
invoke the driver's remove path and free the gdma_context associated
with the device. After returning, mana_serv_reset() currently jumps to
the out label and attempts to clear gc->in_service, dereferencing a
freed gdma_context.
The issue was observed with the following call logs:
[ 698.942636] BUG: unable to handle page fault for address: ff6c2b638088508d
[ 698.943121] #PF: supervisor write access in kernel mode
[ 698.943423] #PF: error_code(0x0002) - not-present page
[S[ 698.943793] Pat Dec 6 07:GD5 100000067 P4D 1002f7067 PUD 1002f8067 PMD 101bef067 PTE 0
0:56 2025] hv_[n e 698.944283] Oops: Oops: 0002 [#1] SMP NOPTI
tvsc f8615163-00[ 698.944611] CPU: 28 UID: 0 PID: 249 Comm: kworker/28:1
...
[Sat Dec 6 07:50:56 2025] R10: [ 699.121594] mana 7870:00:00.0 enP30832s1: Configured vPort 0 PD 18 DB 16
000000000000001b R11: 0000000000000000 R12: ff44cf3f40270000
[Sat Dec 6 07:50:56 2025] R13: 0000000000000001 R14: ff44cf3f402700c8 R15: ff44cf3f4021b405
[Sat Dec 6 07:50:56 2025] FS: 0000000000000000(0000) GS:ff44cf7e9fcf9000(0000) knlGS:0000000000000000
[Sat Dec 6 07:50:56 2025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Sat Dec 6 07:50:56 2025] CR2: ff6c2b638088508d CR3: 000000011fe43001 CR4: 0000000000b73ef0
[Sat Dec 6 07:50:56 2025] Call Trace:
[Sat Dec 6 07:50:56 2025] <TASK>
[Sat Dec 6 07:50:56 2025] mana_serv_func+0x24/0x50 [mana]
[Sat Dec 6 07:50:56 2025] process_one_work+0x190/0x350
[Sat Dec 6 07:50:56 2025] worker_thread+0x2b7/0x3d0
[Sat Dec 6 07:50:56 2025] kthread+0xf3/0x200
[Sat Dec 6 07:50:56 2025] ? __pfx_worker_thread+0x10/0x10
[Sat Dec 6 07:50:56 2025] ? __pfx_kthread+0x10/0x10
[Sat Dec 6 07:50:56 2025] ret_from_fork+0x21a/0x250
[Sat Dec 6 07:50:56 2025] ? __pfx_kthread+0x10/0x10
[Sat Dec 6 07:50:56 2025] ret_from_fork_asm+0x1a/0x30
[Sat Dec 6 07:50:56 2025] </TASK>
Fix this by returning immediately after mana_serv_rescan() to avoid
accessing GC state that may no longer be valid.
Fixes: 9bf66036d6 ("net: mana: Handle hardware recovery events when probing the device")
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Dipayaan Roy <dipayanroy@linux.microsoft.com>
Link: https://patch.msgid.link/20251218131054.GA3173@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Aditya Gupta reported PowerPC crashes bisected to the blamed commit.
Apparently some platforms do not allow prefetch() on arbitrary pointers.
prefetch(next);
prefetch(&next->priority); // CRASH when next == NULL
Only NULL seems to be supported, with specific handling in prefetch().
Add a conditional to avoid the two prefetches and the skb->next clearing
for the last skb in the list.
Fixes: b2e9821cff ("net: prefech skb->priority in __dev_xmit_skb()")
Reported-by: Aditya Gupta <adityag@linux.ibm.com>
Closes: https://lore.kernel.org/netdev/e9f4abee-b132-440f-a50e-bced0868b5a7@linux.ibm.com/T/#mddc372b64ec5a3b181acc9ee3909110c391cc18a
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Aditya Gupta <adityag@linux.ibm.com>
Link: https://patch.msgid.link/20251218081844.809008-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Sphinx reports kernel-doc warning:
WARNING: ./net/bridge/br_private.h:267 struct member 'tunnel_hash' not described in 'net_bridge_vlan_group'
Fix it by describing @tunnel_hash member.
Fixes: efa5356b0d ("bridge: per vlan dst_metadata netlink support")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20251218042936.24175-2-bagasdotme@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
