CVEvulnerability
CVE-2024-47743
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2024-10-21
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
In the Linux kernel, the following vulnerability has been resolved:
KEYS: prevent NULL pointer dereference in find_asymmetric_key()
In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2}
arguments, the kernel will first emit WARN but then have an oops
because id_2 gets dereferenced anyway.
Add the missing id_2 check and move WARN_ON() to the final else branch
to avoid duplicate NULL checks.
Found by Linux Verification Center (linuxtesting.org) with Svace static
analysis tool.
Affected configurations
• linux linux kernel (>= 5.17 < 6.1.113)
• linux linux kernel (>= 6.2 < 6.6.54)
• linux linux kernel (>= 6.7 < 6.10.13)
• linux linux kernel (>= 6.11 < 6.11.2)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/0d3b0706ada15c333e6f9faf19590ff715e45d1e Patch
- https://git.kernel.org/stable/c/13b5b401ead95b5d8266f64904086c55b6024900 Patch
- https://git.kernel.org/stable/c/3322fa8f2aa40b0b3651034cd541647a600cc6c0 Patch
- https://git.kernel.org/stable/c/70fd1966c93bf3bfe3fe6d753eb3d83a76597eef Patch
- https://git.kernel.org/stable/c/a3765b497a4f5224cb2f7a6a2d3357d3066214ee Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html lists.debian.org