CVE-2025-39931
crypto: af_alg - Set merge to zero early in af_alg_sendmsg
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 4, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Linux / Linux
8ff590903d5fc7f5a0a988c38267a3d08e6393a2 < 6241b9e2809b12da9130894cf5beddf088dc1b8a 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 < 2374c11189ef704a3e4863646369f1b8e6a27d71 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 < 24c1106504c625fabd3b7229611af617b4c27ac7 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 < 045ee26aa3920a47ec46d7fcb302420bf01fd753 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 < 9574b2330dbd2b5459b74d3b5e9619d39299fc6f
Linux / Linux
2.6.38
References
git.kernel.org: https://git.kernel.org/stable/c/6241b9e2809b12da9130894cf5beddf088dc1b8a git.kernel.org: https://git.kernel.org/stable/c/2374c11189ef704a3e4863646369f1b8e6a27d71 git.kernel.org: https://git.kernel.org/stable/c/24c1106504c625fabd3b7229611af617b4c27ac7 git.kernel.org: https://git.kernel.org/stable/c/045ee26aa3920a47ec46d7fcb302420bf01fd753 git.kernel.org: https://git.kernel.org/stable/c/9574b2330dbd2b5459b74d3b5e9619d39299fc6f cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-082556.html