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.

https://git.kernel.org/stable/c/3920c5f6edc341729d20d0507e466c6d3b11f372

https://git.kernel.org/stable/c/4711ca06bd169a2cbc9cc59a6de2ed512c41a880

https://git.kernel.org/stable/c/81ce16d938db9b88cdc231522c0358395ae8c6b5

https://git.kernel.org/stable/c/82789a44415e3e31168229421b138278dfb16412

https://git.kernel.org/stable/c/83fa1397d5853de1e27dd52ec44b068ff358ca18

https://git.kernel.org/stable/c/ae93c5b3e2a2968b56d772ca1d06615927b7cc36

https://git.kernel.org/stable/c/c4bd2f4c35b0e15b6040c2f7e7e7986780c066cf

https://git.kernel.org/stable/c/ed459fe319376e876de433d12b6c6772e612ca36

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