linux-cve-announce - CVE-2025-39803: scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd

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Message-ID: <2025091551-CVE-2025-39803-eb8e@gregkh>
Date: Mon, 15 Sep 2025 14:36:53 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-39803: scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl()

From: Greg Kroah-Hartman <gregkh@...nel.org>

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl()

The UIC completion interrupt may be disabled while an UIC command is
being processed. When the UIC completion interrupt is reenabled, an UIC
interrupt is triggered and the WARN_ON_ONCE(!cmd) statement is hit.
Hence this patch that removes this kernel warning.

The Linux kernel CVE team has assigned CVE-2025-39803 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 6.13 with commit fcd8b0450a9acbf3f0e88d749a72ef932df97663 and fixed in 6.16.4 with commit c0cc24c139e0f62859dbf88e050ba074cd93988f
	Issue introduced in 6.13 with commit fcd8b0450a9acbf3f0e88d749a72ef932df97663 and fixed in 6.17-rc3 with commit e5203d89d59bfcbe1f348aa0d2dc4449a8ba644c

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2025-39803
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/ufs/core/ufshcd.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/c0cc24c139e0f62859dbf88e050ba074cd93988f
	https://git.kernel.org/stable/c/e5203d89d59bfcbe1f348aa0d2dc4449a8ba644c