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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.

PUBLISHED Reserved 2024-09-30 | Published 2024-10-21 | Updated 2026-05-11 | Assigner Linux

Product status

Default status
unaffected

7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 (git) before 3322fa8f2aa40b0b3651034cd541647a600cc6c0
affected

7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 (git) before a3765b497a4f5224cb2f7a6a2d3357d3066214ee
affected

7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 (git) before 13b5b401ead95b5d8266f64904086c55b6024900
affected

7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 (git) before 0d3b0706ada15c333e6f9faf19590ff715e45d1e
affected

7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 (git) before 70fd1966c93bf3bfe3fe6d753eb3d83a76597eef
affected

Default status
affected

5.17
affected

Any version before 5.17
unaffected

6.1.113 (semver)
unaffected

6.6.54 (semver)
unaffected

6.10.13 (semver)
unaffected

6.11.2 (semver)
unaffected

6.12 (original_commit_for_fix)
unaffected

References

lists.debian.org/debian-lts-announce/2025/01/msg00001.html

git.kernel.org/...c/3322fa8f2aa40b0b3651034cd541647a600cc6c0

git.kernel.org/...c/a3765b497a4f5224cb2f7a6a2d3357d3066214ee

git.kernel.org/...c/13b5b401ead95b5d8266f64904086c55b6024900

git.kernel.org/...c/0d3b0706ada15c333e6f9faf19590ff715e45d1e

git.kernel.org/...c/70fd1966c93bf3bfe3fe6d753eb3d83a76597eef

cve.org (CVE-2024-47743)

nvd.nist.gov (CVE-2024-47743)

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