CVE-2025-71113

A flaw was found in the Linux kernel's crypto AF_ALG subsystem. Memory allocated via sock_kmalloc() for crypto user API contexts is not zero-initialized, leaving fields with garbage values. Specifically, the 'inflight' variable can contain random data, causing af_alg_alloc_areq() to spuriously return -EBUSY errors when the garbage value is interpreted as true.

This issue manifests as random -EBUSY failures when using the kernel's crypto socket interface, primarily affecting applications using AF_ALG for cryptographic operations. While the uninitialized memory causes functional issues, there is no evidence of exploitable information disclosure or code execution, making this primarily a reliability concern.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.