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Vulnerabilities CVE-2025-39931

CVE-2025-39931

None
Open
TLP:CLEAR

crypto: af_alg - Set merge to zero early in af_alg_sendmsg

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Description

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.

Details

EPSS Score
0.15%

4.7th percentile

Confidence
90%
Published
Oct 4, 2025
Last Modified
Jul 14, 2026
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