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CVE-2025-38421

platform/x86/amd: pmf: Use device managed allocations

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.12.114, 6.14, 6.15.4
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd: pmf: Use device managed allocations If setting up smart PC fails for any reason then this can lead to a double free when unloading amd-pmf. This is because dev->buf was freed but never set to NULL and is again freed in amd_pmf_remove(). To avoid subtle allocation bugs in failures leading to a double free change all allocations into device managed allocations.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From e70b4b8f93d7fcf8ee063a1d1f18782c4da3d335 · fixed in d6a38e1a82d2f9abd0bae84a354654bccb8389f6; From 5b1122fc4995f308b21d7cfc64ef9880ac834d20 · fixed in 0d10b532f861253c283863522d59d099fcb0796d; From 5b1122fc4995f308b21d7cfc64ef9880ac834d20 · fixed in d9db3a941270d92bbd1a6a6b54a10324484f2f2d; From 6.12.23 · fixed in 6.12.114; From 6.13.11 · fixed in 6.14

  • Linux Linux

    6.14

  • KernelLinux

    fixed in 6.12.114; From 6.13.0 · fixed in 6.15.4

References 3

git.kernel.org