Description
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.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/3920c5f6edc341729d20d0507e466c6d3b11f372 Patch
- git.kernel.org/stable/c/4711ca06bd169a2cbc9cc59a6de2ed512c41a880 Patch
- git.kernel.org/stable/c/81ce16d938db9b88cdc231522c0358395ae8c6b5 Patch
- git.kernel.org/stable/c/82789a44415e3e31168229421b138278dfb16412 Patch
- git.kernel.org/stable/c/83fa1397d5853de1e27dd52ec44b068ff358ca18 Patch
- git.kernel.org/stable/c/ae93c5b3e2a2968b56d772ca1d06615927b7cc36 Patch
- git.kernel.org/stable/c/c4bd2f4c35b0e15b6040c2f7e7e7986780c066cf Patch
- git.kernel.org/stable/c/ed459fe319376e876de433d12b6c6772e612ca36 Patch
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 44 · as of 14 November 2026
- CWE
- CWE-662
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