CVE-2025-39964 - crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg

CVE-2025-39964 - crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg

https://cvefeed.io/rssfeed/latest.atom / Mon, 10/13/2025 - 17:43
CVE ID : CVE-2025-39964
Published : Oct. 13, 2025, 1:48 p.m. | 21 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Issuing two writes to the same af_alg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, concurrent writes may create inconsistencies in the internal socket state. Disallow this by adding a new ctx->write field that indiciates exclusive ownership for writing.
Severity: 0.0 | NA
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