CVE Watch24 oct 2026

CVE-2026-64312

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt ins

CVSS

7.5

Alto

EPSS

0.5%

p43

KEV

—

Exploit Today

0-100

Publicado: 25 jul 2026 · Última mod.: 24 oct 2026 · CWE-662

EPSS · 30d

0.5%EPSS · 30 días0.5%

2026-09-272026-10-25

Descripción técnica

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly. That fallback must not keep the padata completion callback. Otherwise an asynchronous completion runs pcrypt_aead_done() even though the request was never enrolled in padata. Restore the original request callback and callback data before calling the child AEAD directly. This keeps the fallback path aligned with a direct AEAD request while leaving the parallel path unchanged.

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