Answer in brief
CVE-2026-64312 records a High severity (CVSS 7.5) vulnerability in crypto: pcrypt - restore callback for non-parallel fallback. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a92ccd3618e42333ac6f150ecdac14dca298bc7a <81ce16d938db9b88cdc231522c0358395ae8c6b5 || >=96001f52ae8c70e2c736d3e1e5dc53d5b521e5ca <3920c5f6edc341729d20d0507e466c6d3b11f372 || >=92834692a539b5b7f409e467a14667d64713b732 <ae93c5b3e2a2968b56d772ca1d06615927b7cc36 || >=5edae7a9a35606017ee6e05911c290acee9fee5a <82789a44415e3e31168229421b138278dfb16412 || >=7ddab756f2de5b7b43c122ebebdf37f400fb2b6f <4711ca06bd169a2cbc9cc59a6de2ed512c41a880 || >=662f2f13e66d3883b9238b0b96b17886179e60e2 <c4bd2f4c35b0e15b6040c2f7e7e7986780c066cf || >=662f2f13e66d3883b9238b0b96b17886179e60e2 <83fa1397d5853de1e27dd52ec44b068ff358ca18 || >=662f2f13e66d3883b9238b0b96b17886179e60e2 <ed459fe319376e876de433d12b6c6772e612ca36 || dd8bf8eb5beba1e7c3b11a9a5a58ccbf345a69e6 || fca8aed12218f96b38e374ff264d78ea1fbd23cc || a8e0074ffb38c9a5964a221bb998034d016c93a2 || >=5.10.231 <5.10.261 || >=5.15.174 <5.15.212 || >=6.1.120 <6.1.178 || >=6.6.64 <6.6.145 || >=6.12.2 <6.12.96 || >=4.19.325 <4.20 || >=5.4.287 <5.5 || >=6.11.11 <6.12 | 81ce16d938db9b88cdc231522c0358395ae8c6b5, 3920c5f6edc341729d20d0507e466c6d3b11f372, ae93c5b3e2a2968b56d772ca1d06615927b7cc36, 82789a44415e3e31168229421b138278dfb16412, 4711ca06bd169a2cbc9cc59a6de2ed512c41a880, c4bd2f4c35b0e15b6040c2f7e7e7986780c066cf, 83fa1397d5853de1e27dd52ec44b068ff358ca18, ed459fe319376e876de433d12b6c6772e612ca36, 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, 4.20, 5.5, 6.12 |
| Linux/Linuxgeneric | 6.13 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.