Tracker / CVE-2025-39841
CVE-2025-39841
Critical 9.8
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 and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel |
| linux | linux_kernel · 5.1 → 5.4.299 |
| linux | linux_kernel · 5.11 → 5.15.192 |
| linux | linux_kernel · 5.16 → 6.1.151 |
| linux | linux_kernel · 5.5 → 5.10.243 |
| linux | linux_kernel · 6.13 → 6.16.6 |
| linux | linux_kernel · 6.2 → 6.6.105 |
| linux | linux_kernel · 6.7 → 6.12.46 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.