Riskcovery

CVE-2024-47743

KEYS: prevent NULL pointer dereference in find_asymmetric_key()

State
Published
Severity
Not scored
Published
Oct 21, 2024
Updated
May 11, 2026
Reserved
Sep 30, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 to before 3322fa8f2aa40b0b3651034cd541647a600cc6c0Affected
  • 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 to before a3765b497a4f5224cb2f7a6a2d3357d3066214eeAffected
  • 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 to before 13b5b401ead95b5d8266f64904086c55b6024900Affected
  • 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 to before 0d3b0706ada15c333e6f9faf19590ff715e45d1eAffected
  • 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 to before 70fd1966c93bf3bfe3fe6d753eb3d83a76597eefAffected
LinuxLinux
  • 5.17Affected
  • before 5.17Not affected
  • 6.1.113 through 6.1.*Not affected
  • 6.6.54 through 6.6.*Not affected
  • 6.10.13 through 6.10.*Not affected
  • 6.11.2 through 6.11.*Not affected
  • 6.12 and laterNot affected

References

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