CVE-2024-38557: Linux kernel · net/mlx5: Reload only IB representors upon lag disable/enable
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 30 Oct 2026, 15:33 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 19 Jun 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to restrict reload and unload operations to only the IB representors of the slaves during lag disable/enable, preventing the deadlock. Users should apply the updated Linux kernel version containing this patch. No additional mitigations are indicated by the vendor advisory.
Description
CVE-2024-38557 addresses a deadlock vulnerability in the Linux kernel's mlx5 driver related to lag (link aggregation) disable/enable operations. The issue occurs because the existing flow unloads all representors, including ethernet representors, which the lag driver should not manage, leading to a deadlock due to lock re-acquisition. The fix restricts reload and unload operations to only the InfiniBand (IB) representors of the slaves, preventing the deadlock.
References
- git.kernel.org/stable/c/6077962743c037cbd49fd31e5c4cdd20ffd03bad (opens in a new tab)
- git.kernel.org/stable/c/e93fc8d959e56092e2eca1e5511c2d2f0ad6807a (opens in a new tab)
- git.kernel.org/stable/c/f03c714a0fdd1f93101a929d0e727c28a66383fc (opens in a new tab)
- git.kernel.org/stable/c/0f320f28f54b1b269a755be2e3fb3695e0b80b07 (opens in a new tab)
- git.kernel.org/stable/c/0f06228d4a2dcc1fca5b3ddb0eefa09c05b102c4 (opens in a new tab)