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CVE-2025-39841

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CVE-2025-39841

Published: Sep 19, 2025

Modified: May 12, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
472e146d1cf3410a898b49834500fa9e33ac41a2 - < ab34084f42ee06a9028d67c78feafb911d33d111
affected
472e146d1cf3410a898b49834500fa9e33ac41a2 - < baa39f6ad79d372a6ce0aa639fbb2f1578479f57
affected
472e146d1cf3410a898b49834500fa9e33ac41a2 - < 95b63d15fce5c54a73bbf195e1aacb5a75b128e2
affected
472e146d1cf3410a898b49834500fa9e33ac41a2 - < 55658c7501467ca9ef3bd4453dd920010db8bc13
affected
472e146d1cf3410a898b49834500fa9e33ac41a2 - < d96cc9a1b57725930c60b607423759d563b4d900

+3 more versions

Linux

Linux

affected
5.1
unaffected
0 - < 5.1
unaffected
5.4.299 - <= 5.4.*
unaffected
5.10.243 - <= 5.10.*
unaffected
5.15.192 - <= 5.15.*

+5 more versions

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