CVE-2026-64314
kernel: crypto: chacha20poly1305 - validate poly1305 template argument
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Severity
UnknownRed Hat Product Security
CVSS
Review impact separately from score.
Published · July 25, 2026
Updated · July 27, 2026
Description
A flaw was found in the Linux kernel's chacha20poly1305 cryptographic module. This vulnerability occurs because the chachapoly_create() function does not properly validate a poly1305 template argument. When this argument is missing, an error pointer is incorrectly passed to a string comparison function, leading to a dereference of the error pointer. This can result in a system crash, causing a Denial of Service (DoS) for affected systems.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-476 · NULL Pointer Dereference