CVE-2025-39964 | 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.
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.
- 🔗 git.kernel.org/stable/c/0f28c4adbc4a97437874c9b669fd7958…
- 🔗 git.kernel.org/stable/c/e4c1ec11132ec466f7362a95f36a506c…
- 🔗 git.kernel.org/stable/c/1f323a48e9b5ebfe6dc7d130fdf5c3c0…
- 🔗 git.kernel.org/stable/c/7c4491b5644e3a3708f3dbd7591be0a5…
- 🔗 git.kernel.org/stable/c/9aee87da5572b3a14075f501752e2098…
- 🔗 git.kernel.org/stable/c/45bcf60fe49b37daab1acee57b27211a…
- 🔗 git.kernel.org/stable/c/1b34cbbf4f011a121ef7b2d7d6e6920a…
- 🔗 cert-portal.siemens.com/productcert/html/ssa-019113.html
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CVE-2025-39964 | 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.
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 fa