CVE-2025-39841

EUVD-2025-30359
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
5.1 ≤
𝑥
< 5.4.299
linuxlinux_kernel
5.5 ≤
𝑥
< 5.10.243
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.192
linuxlinux_kernel
5.16 ≤
𝑥
< 6.1.151
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.105
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.46
linuxlinux_kernel
6.13 ≤
𝑥
< 6.16.6
linuxlinux_kernel
6.17:rc1
linuxlinux_kernel
6.17:rc2
linuxlinux_kernel
6.17:rc3
linuxlinux_kernel
6.17:rc4
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.159-1
fixed
bookworm (security)
6.1.162-1
fixed
bullseye
vulnerable
bullseye (security)
5.10.249-1
fixed
forky
6.18.9-1
fixed
sid
6.18.12-1
fixed
trixie
6.12.63-1
fixed
trixie (security)
6.12.73-1
fixed
linux-6.1
bullseye (security)
6.1.162-1~deb11u1
fixed