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VulnerabilityPublished Updated

CVE-2025-38387: Linux kernel · RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in e8069711139249994450c214cec152b917b959e0 : patch Linux kernel soon.

Data as of 5 Nov 2026, 21:20 UTC

Severity
High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch
Available – fixed in e8069711139249994450c214cec152b917b959e0, 972e968aac0dce8fe8faad54f6106de576695d8e, 716b555fc0580c2aa4c2c32ae4401c7e3ad9873e +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 5 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 7597385371425febdaa8c6a1da3625d4ffff16f5, < e8069711139249994450c214cec152b917b959e0
Fixed in
  • e8069711139249994450c214cec152b917b959e0
LinuxLinuxAffected
  • ≥ 7597385371425febdaa8c6a1da3625d4ffff16f5, < 972e968aac0dce8fe8faad54f6106de576695d8e
Fixed in
  • 972e968aac0dce8fe8faad54f6106de576695d8e
LinuxLinuxAffected
  • ≥ 7597385371425febdaa8c6a1da3625d4ffff16f5, < 716b555fc0580c2aa4c2c32ae4401c7e3ad9873e
Fixed in
  • 716b555fc0580c2aa4c2c32ae4401c7e3ad9873e
LinuxLinuxAffected
  • ≥ 7597385371425febdaa8c6a1da3625d4ffff16f5, < 93fccfa71c66a4003b3d2fef3a38de7307e14a4e
Fixed in
  • 93fccfa71c66a4003b3d2fef3a38de7307e14a4e
LinuxLinuxAffected
  • ≥ 7597385371425febdaa8c6a1da3625d4ffff16f5, < 23a3b32a274a8d6f33480d0eff436eb100981651
Fixed in
  • 23a3b32a274a8d6f33480d0eff436eb100981651
LinuxLinuxAffected
  • ≥ 7597385371425febdaa8c6a1da3625d4ffff16f5, < 9a28377a96fb299c180dd9cf0be3b0a038a52d4e
Fixed in
  • 9a28377a96fb299c180dd9cf0be3b0a038a52d4e

AI-suggested

A fix is available and has been applied in the Linux kernel source as indicated by multiple fixed commits. Users should update to a Linux kernel version that includes these fixes to prevent the kernel crash caused by this vulnerability.

Description

A vulnerability in the Linux kernel's RDMA/mlx5 driver was fixed by initializing the obj_event->obj_sub_list before inserting it into the xa tree. Without this initialization, a NULL pointer dereference could occur, leading to a kernel crash. The issue was observed on Linux kernel version 5.3 and related to the mlx5_ib module handling events improperly.

References

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