CVE-2024-42268

net/mlx5: Fix missing lock on sync reset reload

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix missing lock on sync reset reload On sync reset reload work, when remote host updates devlink on reload actions performed on that host, it misses taking devlink lock before calling devlink_remote_reload_actions_performed() which results in triggering lock assert like the following: WARNING: CPU: 4 PID: 1164 at net/devlink/core.c:261 devl_assert_locked+0x3e/0x50 … CPU: 4 PID: 1164 Comm: kworker/u96:6 Tainted: G S W 6.10.0-rc2+ #116 Hardware name: Supermicro SYS-2028TP-DECTR/X10DRT-PT, BIOS 2.0 12/18/2015 Workqueue: mlx5_fw_reset_events mlx5_sync_reset_reload_work [mlx5_core] RIP: 0010:devl_assert_locked+0x3e/0x50 … Call Trace: <TASK> ? __warn+0xa4/0x210 ? devl_assert_locked+0x3e/0x50 ? report_bug+0x160/0x280 ? handle_bug+0x3f/0x80 ? exc_invalid_op+0x17/0x40 ? asm_exc_invalid_op+0x1a/0x20 ? devl_assert_locked+0x3e/0x50 devlink_notify+0x88/0x2b0 ? mlx5_attach_device+0x20c/0x230 [mlx5_core] ? __pfx_devlink_notify+0x10/0x10 ? process_one_work+0x4b6/0xbb0 process_one_work+0x4b6/0xbb0 […]

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/5d07d1d40aabfd61bab21115639bd4f641db6002 patch
https://git.kernel.org/stable/c/98884e89c90d077f6fe6ba18e6cf6f914642f04e patch
https://git.kernel.org/stable/c/091268f3c27a5b6d7858a3bb2a0dbcc9cd26ddb5 patch
https://git.kernel.org/stable/c/572f9caa9e7295f8c8822e4122c7ae8f1c412ff9 patch

Frequently Asked Questions

What is the severity of CVE-2024-42268?
CVE-2024-42268 has been scored as a medium severity vulnerability.
How to fix CVE-2024-42268?
To fix CVE-2024-42268, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-42268 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-42268 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-42268?
CVE-2024-42268 affects Linux Linux, Linux Linux.
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