linux-cve-announce - CVE-2023-53041: scsi: qla2xxx: Perform lockless command completion in abort path

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Message-ID: <2025050202-CVE-2023-53041-472c@gregkh>
Date: Fri,  2 May 2025 17:55:06 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53041: scsi: qla2xxx: Perform lockless command completion in abort path

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

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

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

scsi: qla2xxx: Perform lockless command completion in abort path

While adding and removing the controller, the following call trace was
observed:

WARNING: CPU: 3 PID: 623596 at kernel/dma/mapping.c:532 dma_free_attrs+0x33/0x50
CPU: 3 PID: 623596 Comm: sh Kdump: loaded Not tainted 5.14.0-96.el9.x86_64 #1
RIP: 0010:dma_free_attrs+0x33/0x50

Call Trace:
   qla2x00_async_sns_sp_done+0x107/0x1b0 [qla2xxx]
   qla2x00_abort_srb+0x8e/0x250 [qla2xxx]
   ? ql_dbg+0x70/0x100 [qla2xxx]
   __qla2x00_abort_all_cmds+0x108/0x190 [qla2xxx]
   qla2x00_abort_all_cmds+0x24/0x70 [qla2xxx]
   qla2x00_abort_isp_cleanup+0x305/0x3e0 [qla2xxx]
   qla2x00_remove_one+0x364/0x400 [qla2xxx]
   pci_device_remove+0x36/0xa0
   __device_release_driver+0x17a/0x230
   device_release_driver+0x24/0x30
   pci_stop_bus_device+0x68/0x90
   pci_stop_and_remove_bus_device_locked+0x16/0x30
   remove_store+0x75/0x90
   kernfs_fop_write_iter+0x11c/0x1b0
   new_sync_write+0x11f/0x1b0
   vfs_write+0x1eb/0x280
   ksys_write+0x5f/0xe0
   do_syscall_64+0x5c/0x80
   ? do_user_addr_fault+0x1d8/0x680
   ? do_syscall_64+0x69/0x80
   ? exc_page_fault+0x62/0x140
   ? asm_exc_page_fault+0x8/0x30
   entry_SYSCALL_64_after_hwframe+0x44/0xae

The command was completed in the abort path during driver unload with a
lock held, causing the warning in abort path. Hence complete the command
without any lock held.

The Linux kernel CVE team has assigned CVE-2023-53041 to this issue.

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

	Fixed in 5.4.240 with commit 9189f20b4c5307c0998682bb522e481b4567a8b8
	Fixed in 5.10.177 with commit 231cfa78ec5badd84a1a2b09465bfad1a926aba1
	Fixed in 5.15.105 with commit d6f7377528d2abf338e504126e44439541be8f7d
	Fixed in 6.1.22 with commit cd0a1804ac5bab2545ac700c8d0fe9ae9284c567
	Fixed in 6.2.9 with commit 415d614344a4f1bbddf55d724fc7eb9ef4b39aad
	Fixed in 6.3 with commit 0367076b0817d5c75dfb83001ce7ce5c64d803a9

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-2023-53041
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/scsi/qla2xxx/qla_os.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/9189f20b4c5307c0998682bb522e481b4567a8b8
	https://git.kernel.org/stable/c/231cfa78ec5badd84a1a2b09465bfad1a926aba1
	https://git.kernel.org/stable/c/d6f7377528d2abf338e504126e44439541be8f7d
	https://git.kernel.org/stable/c/cd0a1804ac5bab2545ac700c8d0fe9ae9284c567
	https://git.kernel.org/stable/c/415d614344a4f1bbddf55d724fc7eb9ef4b39aad
	https://git.kernel.org/stable/c/0367076b0817d5c75dfb83001ce7ce5c64d803a9