The vulnerability of the af_alg_sendmsg() function in the crypto/af_alg.c module of the Linux kernel’s cryptographic subsystem allows a hacker to induce a service failure.

The vulnerability of the afalgsendmsg function in the crypto/afalg.c module of the Linux kernel’s cryptographic subsystem is related to the improper disabling or release of resources. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: crypto: afalg - Set merge to zero early in afalgsendmsg. If an error causes afalgsendmsg to abort, ctx-merge may contain a garbage value from the previous loop. This could lead to a crash when afalgsendmsg attempts to perform a...

crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg

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SUSE CVE-2025-39964

In the Linux kernel, the following vulnerability has been resolved: crypto: afalg - Disallow concurrent writes in afalgsendmsg Issuing two writes to the same afalg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, concurrent writes may create inconsistencie...

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

In the Linux kernel, the following vulnerability has been resolved: crypto: afalg - Disallow concurrent writes in afalgsendmsg Issuing two writes to the same afalg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, concurrent writes may create inconsistencie...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from afalgsendmsg allowing concurrent writes, which could result in inconsistent internal socket state...