linux-cve-announce - CVE-2023-53510: scsi: ufs: core: Fix handling of lrbp->cmd

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Message-ID: <2025100130-CVE-2023-53510-9e6a@gregkh>
Date: Wed,  1 Oct 2025 13:46:02 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53510: scsi: ufs: core: Fix handling of lrbp->cmd

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

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

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

scsi: ufs: core: Fix handling of lrbp->cmd

ufshcd_queuecommand() may be called two times in a row for a SCSI command
before it is completed. Hence make the following changes:

 - In the functions that submit a command, do not check the old value of
   lrbp->cmd nor clear lrbp->cmd in error paths.

 - In ufshcd_release_scsi_cmd(), do not clear lrbp->cmd.

See also scsi_send_eh_cmnd().

This commit prevents that the following appears if a command times out:

WARNING: at drivers/ufs/core/ufshcd.c:2965 ufshcd_queuecommand+0x6f8/0x9a8
Call trace:
 ufshcd_queuecommand+0x6f8/0x9a8
 scsi_send_eh_cmnd+0x2c0/0x960
 scsi_eh_test_devices+0x100/0x314
 scsi_eh_ready_devs+0xd90/0x114c
 scsi_error_handler+0x2b4/0xb70
 kthread+0x16c/0x1e0

The Linux kernel CVE team has assigned CVE-2023-53510 to this issue.


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

	Issue introduced in 3.12 with commit 5a0b0cb9bee767ef10ff9ce2fb4141af06416288 and fixed in 6.3.13 with commit f3ee24af62681b942bbd799ac77b90a6d7e1fdb1
	Issue introduced in 3.12 with commit 5a0b0cb9bee767ef10ff9ce2fb4141af06416288 and fixed in 6.4.4 with commit 49234a401e161a2f2698f4612ab792c49b3cad1b
	Issue introduced in 3.12 with commit 5a0b0cb9bee767ef10ff9ce2fb4141af06416288 and fixed in 6.5 with commit 549e91a9bbaa0ee480f59357868421a61d369770

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-2023-53510
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/f3ee24af62681b942bbd799ac77b90a6d7e1fdb1
	https://git.kernel.org/stable/c/49234a401e161a2f2698f4612ab792c49b3cad1b
	https://git.kernel.org/stable/c/549e91a9bbaa0ee480f59357868421a61d369770