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
linux: linux kernel; debian: debian linux
References10
- git.kernel.org/stable/c/367cb5ffd8a8a4c85dc89f55e7fa7cc191425b11 Patch
- git.kernel.org/stable/c/55658c7501467ca9ef3bd4453dd920010db8bc13 Patch
- git.kernel.org/stable/c/897f64b01c1249ac730329b83f4f40bab71e86c7 Patch
- git.kernel.org/stable/c/95b63d15fce5c54a73bbf195e1aacb5a75b128e2 Patch
- git.kernel.org/stable/c/9dba9a45c348e8460da97c450cddf70b2056deb3 Patch
- git.kernel.org/stable/c/ab34084f42ee06a9028d67c78feafb911d33d111 Patch
- git.kernel.org/stable/c/baa39f6ad79d372a6ce0aa639fbb2f1578479f57 Patch
- git.kernel.org/stable/c/d96cc9a1b57725930c60b607423759d563b4d900 Patch
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html Mailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/10/msg00008.html Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 42 · as of 8 November 2026
- CWE
- CWE-787
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