CVE-2024-36476: Linux kernel · RDMA/rtrs: Ensure 'ib_sge list' is accessible
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 30 Oct 2026, 00:58 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Jan 2025
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 29 Oct 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel source code by adjusting the variable declaration scope. Users should apply the official kernel updates that include this fix once available. Patch status is not explicitly stated; check the vendor advisory or kernel mailing lists for the fixed kernel versions.
Description
CVE-2024-36476 is a medium severity vulnerability in the Linux kernel's RDMA/rtrs subsystem. It involves improper variable scope for the 'ib_sge list' variable, which was declared inside a conditional block, causing a kernel NULL pointer dereference. The issue has been fixed by moving the declaration outside the conditional block to ensure accessibility throughout the function, preventing the crash.
References
- nvd.nist.gov/vuln/detail/CVE-2024-36476 (opens in a new tab)
- git.kernel.org/stable/c/143378075904e78b3b2a810099bcc3b3d82d762f (opens in a new tab)
- git.kernel.org/stable/c/32e1e748a85bd52b20b3857d80fd166d22fa455a (opens in a new tab)
- git.kernel.org/stable/c/6ffb5c1885195ae5211a12b4acd2d51843ca41b0 (opens in a new tab)
- git.kernel.org/stable/c/7eaa71f56a6f7ab87957213472dc6d4055862722 (opens in a new tab)
- git.kernel.org/stable/c/b238f61cc394d5fef27b26d7d9aa383ebfddabb0 (opens in a new tab)
- git.kernel.org/stable/c/fb514b31395946022f13a08e06a435f53cf9e8b3 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/03/msg00002.html (opens in a new tab)