CVE-2026-45872: scsi: smartpqi: Fix memory leak in pqi_report_phys_luns()

CVE-2026-45872: scsi: smartpqi: Fix memory leak in pqi_report_phys_luns()

[Greg Kroah-Hartman]

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

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

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

scsi: smartpqi: Fix memory leak in pqi_report_phys_luns()

pqi_report_phys_luns() fails to release the rpl_list buffer when
encountering an unsupported data format or when the allocation for
rpl_16byte_wwid_list fails. These early returns bypass the cleanup logic,
leading to memory leaks.

Consolidate the error handling by adding an out_free_rpl_list label and use
goto statements to ensure rpl_list is consistently freed on failure.

Compile tested only. Issue found using a prototype static analysis tool and
code review.

The Linux kernel CVE team has assigned CVE-2026-45872 to this issue.


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

	Issue introduced in 5.16 with commit 28ca6d876c5a375094847606046e0bf5d044d9b4 and fixed in 6.1.165 with commit f471ecfec093e39ef8fd08978413793087daa14d
	Issue introduced in 5.16 with commit 28ca6d876c5a375094847606046e0bf5d044d9b4 and fixed in 6.6.128 with commit fdf1188cfa80f88c9f18d58cb33d57ff40e70e26
	Issue introduced in 5.16 with commit 28ca6d876c5a375094847606046e0bf5d044d9b4 and fixed in 6.12.75 with commit d52e13122d3771f753dd73ae6512fa01f58015cb
	Issue introduced in 5.16 with commit 28ca6d876c5a375094847606046e0bf5d044d9b4 and fixed in 6.18.14 with commit e5579ebaadc7b699868dad0f591a7bf83cd647e1
	Issue introduced in 5.16 with commit 28ca6d876c5a375094847606046e0bf5d044d9b4 and fixed in 6.19.4 with commit 454570434114e4862767f506a442a0f110b639b2
	Issue introduced in 5.16 with commit 28ca6d876c5a375094847606046e0bf5d044d9b4 and fixed in 7.0 with commit 41b37312bd9722af77ec7817ccf22d7a4880c289

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-2026-45872
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/smartpqi/smartpqi_init.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/f471ecfec093e39ef8fd08978413793087daa14d
	https://git.kernel.org/stable/c/fdf1188cfa80f88c9f18d58cb33d57ff40e70e26
	https://git.kernel.org/stable/c/d52e13122d3771f753dd73ae6512fa01f58015cb
	https://git.kernel.org/stable/c/e5579ebaadc7b699868dad0f591a7bf83cd647e1
	https://git.kernel.org/stable/c/454570434114e4862767f506a442a0f110b639b2
	https://git.kernel.org/stable/c/41b37312bd9722af77ec7817ccf22d7a4880c289