CVE-2026-64312crypto: pcrypt - restore callback for non-parallel fallback
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from a92ccd3618e42333ac6f150ecdac14dca298bc7a before 81ce16d938db9b88cdc231522c0358395ae8c6b5; 96001f52ae8c70e2c736d3e1e5dc53d5b521e5ca builds before 3920c5f6edc341729d20d0507e466c6d3b11f372; from 92834692a539b5b7f409e467a14667d64713b732 before ae93c5b3e2a2968b56d772ca1d06615927b7cc36; from 5edae7a9a35606017ee6e05911c290acee9fee5a before 82789a44415e3e31168229421b138278dfb16412; from 7ddab756f2de5b7b43c122ebebdf37f400fb2b6f before 4711ca06bd169a2cbc9cc59a6de2ed512c41a880; from 662f2f13e66d3883b9238b0b96b17886179e60e2 before c4bd2f4c35b0e15b6040c2f7e7e7986780c066cf; 662f2f13e66d3883b9238b0b96b17886179e60e2 builds before 83fa1397d5853de1e27dd52ec44b068ff358ca18; from 662f2f13e66d3883b9238b0b96b17886179e60e2 before ed459fe319376e876de433d12b6c6772e612ca36; and 11 more ranges | CNA record |
linux linux_kernel linux:linux_kernel | from 4.19.325 before 4.20; from 5.4.287 before 5.5; from 5.10.231 before 5.10.261; from 5.15.174 before 5.15.212; from 6.1.120 before 6.1.178; from 6.6.64 before 6.6.145; from 6.11.11 before 6.12; from 6.12.2 before 6.12.96; and 2 more ranges | NVD |
References
- https://git.kernel.org/stable/c/81ce16d938db9b88cdc231522c0358395ae8c6b5patch
- https://git.kernel.org/stable/c/3920c5f6edc341729d20d0507e466c6d3b11f372patch
- https://git.kernel.org/stable/c/ae93c5b3e2a2968b56d772ca1d06615927b7cc36patch
- https://git.kernel.org/stable/c/82789a44415e3e31168229421b138278dfb16412patch
- https://git.kernel.org/stable/c/4711ca06bd169a2cbc9cc59a6de2ed512c41a880patch
- https://git.kernel.org/stable/c/c4bd2f4c35b0e15b6040c2f7e7e7986780c066cfpatch
- https://git.kernel.org/stable/c/83fa1397d5853de1e27dd52ec44b068ff358ca18patch
- https://git.kernel.org/stable/c/ed459fe319376e876de433d12b6c6772e612ca36patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.