CVE-2026-64312

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.

• linux linux kernel (>= 4.19.325 < 4.20) • linux linux kernel (>= 5.4.287 < 5.5) • linux linux kernel (>= 5.10.231 < 5.10.261) • linux linux kernel (>= 5.15.174 < 5.15.212) • linux linux kernel (>= 6.1.120 < 6.1.178) • linux linux kernel (>= 6.6.64 < 6.6.145) • linux linux kernel (>= 6.11.11 < 6.12) • linux linux kernel (>= 6.12.2 < 6.12.96) • linux linux kernel (>= 6.13 < 6.18.39) • linux linux kernel (>= 6.19 < 7.1.4)