Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2025-39931

crypto: af_alg - Set merge to zero early in af_alg_sendmsg

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.260, 5.15.211, 6.1.154, 6.6.108, 6.12.49, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Set merge to zero early in af_alg_sendmsg If an error causes af_alg_sendmsg to abort, ctx->merge may contain a garbage value from the previous loop. This may then trigger a crash on the next entry into af_alg_sendmsg when it attempts to do a merge that can't be done. Fix this by setting ctx->merge to zero near the start of the loop.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 · fixed in 28f6f37abca7c5c9eb3959c66310f1d4d98b8aaf; From 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 · fixed in db2b42425dfbde4983b0c20fb7cfa05f70e6a745; From 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 · fixed in 6241b9e2809b12da9130894cf5beddf088dc1b8a; From 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 · fixed in 2374c11189ef704a3e4863646369f1b8e6a27d71; From 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 · fixed in 24c1106504c625fabd3b7229611af617b4c27ac7; From 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 · fixed in 045ee26aa3920a47ec46d7fcb302420bf01fd753; From 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 · fixed in 9574b2330dbd2b5459b74d3b5e9619d39299fc6f

  • Linux Linux

    2.6.38

  • KernelLinux

    From 2.6.38 · fixed in 5.10.260; From 5.11.0 · fixed in 5.15.211; From 5.16.0 · fixed in 6.1.154; From 6.2.0 · fixed in 6.6.108; From 6.7.0 · fixed in 6.12.49; From 6.13.0 · fixed in 6.16.9

References 7

git.kernel.org