Description
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix buffer free/clear order in deferred receive path Fix a use-after-free window by correcting the buffer release sequence in the deferred receive path. The code freed the RQ buffer first and only then cleared the context pointer under the lock. Concurrent paths (e.g., ABTS and the repost path) also inspect and release the same pointer under the lock, so the old order could lead to double-free/UAF. Note that the repost path already uses the correct pattern: detach the pointer under the lock, then free it after dropping the lock. The deferred path should do the same.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
472e146d1cf3410a898b49834500fa9e33ac41a2 to < ab34084f42ee06a9028d67c78feafb911d33d111affected472e146d1cf3410a898b49834500fa9e33ac41a2 to < baa39f6ad79d372a6ce0aa639fbb2f1578479f57affected472e146d1cf3410a898b49834500fa9e33ac41a2 to < 95b63d15fce5c54a73bbf195e1aacb5a75b128e2affected472e146d1cf3410a898b49834500fa9e33ac41a2 to < 55658c7501467ca9ef3bd4453dd920010db8bc13affected472e146d1cf3410a898b49834500fa9e33ac41a2 to < d96cc9a1b57725930c60b607423759d563b4d900affected472e146d1cf3410a898b49834500fa9e33ac41a2 to < 367cb5ffd8a8a4c85dc89f55e7fa7cc191425b11affected472e146d1cf3410a898b49834500fa9e33ac41a2 to < 897f64b01c1249ac730329b83f4f40bab71e86c7affected472e146d1cf3410a898b49834500fa9e33ac41a2 to < 9dba9a45c348e8460da97c450cddf70b2056deb3affected
Linux Linux
Default version status: affected
5.1affected0 to < 5.1unaffected5.4.299 to ≤ 5.4.*unaffected5.10.243 to ≤ 5.10.*unaffected5.15.192 to ≤ 5.15.*unaffected6.1.151 to ≤ 6.1.*unaffected6.6.105 to ≤ 6.6.*unaffected6.12.46 to ≤ 6.12.*unaffected6.16.6 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/ab34084f42ee06a9028d67c78feafb911d33d111 ↗
- https://git.kernel.org/stable/c/baa39f6ad79d372a6ce0aa639fbb2f1578479f57 ↗
- https://git.kernel.org/stable/c/95b63d15fce5c54a73bbf195e1aacb5a75b128e2 ↗
- https://git.kernel.org/stable/c/55658c7501467ca9ef3bd4453dd920010db8bc13 ↗
- https://git.kernel.org/stable/c/d96cc9a1b57725930c60b607423759d563b4d900 ↗
- https://git.kernel.org/stable/c/367cb5ffd8a8a4c85dc89f55e7fa7cc191425b11 ↗
- https://git.kernel.org/stable/c/897f64b01c1249ac730329b83f4f40bab71e86c7 ↗
- https://git.kernel.org/stable/c/9dba9a45c348e8460da97c450cddf70b2056deb3 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html ↗