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Linux kernel 6.6.157.1-1 may crash during network driver updates
published 2 years ago
Summary
The Linux kernel version 6.6.157.1-1 has a problem where a specific network driver routine can cause the system to stop responding when it tries to adjust certain device settings. This can lead to a kernel panic or freeze. Installing the latest kernel updates that include the provided fix will prevent the crash.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Azure Linux:3 | – | kernel |
<= 6.6.157.1-1 <= 6.6.152.1-1 |
| Azure Linux:3 | azure | kernel | <= 6.6.150.1-1 |
Original advisory text
CVE-2024-38595 affecting package kernel 6.6.157.1-1
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Fix peer devlink set for SF representor devlink port
The cited patch change register devlink flow, and neglect to reflect
the changes for peer devlink set logic. Peer devlink set is
triggering a call trace if done after devl_register.[1]
Hence, align peer devlink set logic with register devlink flow.
[1]
WARNING: CPU: 4 PID: 3394 at net/devlink/core.c:155 devlink_rel_nested_in_add+0x177/0x180
CPU: 4 PID: 3394 Comm: kworker/u40:1 Not tainted 6.9.0-rc4_for_linust_min_debug_2024_04_16_14_08 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
Workqueue: mlx5_vhca_event0 mlx5_vhca_state_work_handler [mlx5_core]
RIP: 0010:devlink_rel_nested_in_add+0x177/0x180
Call Trace:
<TASK>
? __warn+0x78/0x120
? devlink_rel_nested_in_add+0x177/0x180
? report_bug+0x16d/0x180
? handle_bug+0x3c/0x60
? exc_invalid_op+0x14/0x70
? asm_exc_invalid_op+0x16/0x20
? devlink_port_init+0x30/0x30
? devlink_port_type_clear+0x50/0x50
? devlink_rel_nested_in_add+0x177/0x180
? devlink_rel_nested_in_add+0xdd/0x180
mlx5_sf_mdev_event+0x74/0xb0 [mlx5_core]
notifier_call_chain+0x35/0xb0
blocking_notifier_call_chain+0x3d/0x60
mlx5_blocking_notifier_call_chain+0x22/0x30 [mlx5_core]
mlx5_sf_dev_probe+0x185/0x3e0 [mlx5_core]
auxiliary_bus_probe+0x38/0x80
? driver_sysfs_add+0x51/0x80
really_probe+0xc5/0x3a0
? driver_probe_device+0x90/0x90
__driver_probe_device+0x80/0x160
driver_probe_device+0x1e/0x90
__device_attach_driver+0x7d/0x100
bus_for_each_drv+0x80/0xd0
__device_attach+0xbc/0x1f0
bus_probe_device+0x86/0xa0
device_add+0x64f/0x860
__auxiliary_device_add+0x3b/0xa0
mlx5_sf_dev_add+0x139/0x330 [mlx5_core]
mlx5_sf_dev_state_change_handler+0x1e4/0x250 [mlx5_core]
notifier_call_chain+0x35/0xb0
blocking_notifier_call_chain+0x3d/0x60
mlx5_vhca_state_work_handler+0x151/0x200 [mlx5_core]
process_one_work+0x13f/0x2e0
worker_thread+0x2bd/0x3c0
? rescuer_thread+0x410/0x410
kthread+0xc4/0xf0
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x2d/0x50
? kthread_complete_and_exit+0x20/0x20
ret_from_fork_asm+0x11/0x20
</TASK>
net/mlx5: Fix peer devlink set for SF representor devlink port
The cited patch change register devlink flow, and neglect to reflect
the changes for peer devlink set logic. Peer devlink set is
triggering a call trace if done after devl_register.[1]
Hence, align peer devlink set logic with register devlink flow.
[1]
WARNING: CPU: 4 PID: 3394 at net/devlink/core.c:155 devlink_rel_nested_in_add+0x177/0x180
CPU: 4 PID: 3394 Comm: kworker/u40:1 Not tainted 6.9.0-rc4_for_linust_min_debug_2024_04_16_14_08 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
Workqueue: mlx5_vhca_event0 mlx5_vhca_state_work_handler [mlx5_core]
RIP: 0010:devlink_rel_nested_in_add+0x177/0x180
Call Trace:
<TASK>
? __warn+0x78/0x120
? devlink_rel_nested_in_add+0x177/0x180
? report_bug+0x16d/0x180
? handle_bug+0x3c/0x60
? exc_invalid_op+0x14/0x70
? asm_exc_invalid_op+0x16/0x20
? devlink_port_init+0x30/0x30
? devlink_port_type_clear+0x50/0x50
? devlink_rel_nested_in_add+0x177/0x180
? devlink_rel_nested_in_add+0xdd/0x180
mlx5_sf_mdev_event+0x74/0xb0 [mlx5_core]
notifier_call_chain+0x35/0xb0
blocking_notifier_call_chain+0x3d/0x60
mlx5_blocking_notifier_call_chain+0x22/0x30 [mlx5_core]
mlx5_sf_dev_probe+0x185/0x3e0 [mlx5_core]
auxiliary_bus_probe+0x38/0x80
? driver_sysfs_add+0x51/0x80
really_probe+0xc5/0x3a0
? driver_probe_device+0x90/0x90
__driver_probe_device+0x80/0x160
driver_probe_device+0x1e/0x90
__device_attach_driver+0x7d/0x100
bus_for_each_drv+0x80/0xd0
__device_attach+0xbc/0x1f0
bus_probe_device+0x86/0xa0
device_add+0x64f/0x860
__auxiliary_device_add+0x3b/0xa0
mlx5_sf_dev_add+0x139/0x330 [mlx5_core]
mlx5_sf_dev_state_change_handler+0x1e4/0x250 [mlx5_core]
notifier_call_chain+0x35/0xb0
blocking_notifier_call_chain+0x3d/0x60
mlx5_vhca_state_work_handler+0x151/0x200 [mlx5_core]
process_one_work+0x13f/0x2e0
worker_thread+0x2bd/0x3c0
? rescuer_thread+0x410/0x410
kthread+0xc4/0xf0
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x2d/0x50
? kthread_complete_and_exit+0x20/0x20
ret_from_fork_asm+0x11/0x20
</TASK>
References
Timeline
Published19 Jun 2024
Updated24 Sep 2026
First seen23 Sep 2026
Sources
AZL-69515 · OSV
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