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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.50% probability · 43th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-662
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/3920c5f6edc341729d20d0507e466c6d3b11f372Patch
- https://git.kernel.org/stable/c/4711ca06bd169a2cbc9cc59a6de2ed512c41a880Patch
- https://git.kernel.org/stable/c/81ce16d938db9b88cdc231522c0358395ae8c6b5Patch
- https://git.kernel.org/stable/c/82789a44415e3e31168229421b138278dfb16412Patch
- https://git.kernel.org/stable/c/83fa1397d5853de1e27dd52ec44b068ff358ca18Patch
- https://git.kernel.org/stable/c/ae93c5b3e2a2968b56d772ca1d06615927b7cc36Patch
- https://git.kernel.org/stable/c/c4bd2f4c35b0e15b6040c2f7e7e7986780c066cfPatch
- https://git.kernel.org/stable/c/ed459fe319376e876de433d12b6c6772e612ca36Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.