linux-cve-announce - CVE-2025-71236: scsi: qla2xxx: Validate sp before freeing associated memory

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Message-ID: <2026021806-CVE-2025-71236-26df@gregkh>
Date: Wed, 18 Feb 2026 15:54:07 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-71236: scsi: qla2xxx: Validate sp before freeing associated memory

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

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

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

scsi: qla2xxx: Validate sp before freeing associated memory

System crash with the following signature
[154563.214890] nvme nvme2: NVME-FC{1}: controller connect complete
[154564.169363] qla2xxx [0000:b0:00.1]-3002:2: nvme: Sched: Set ZIO exchange threshold to 3.
[154564.169405] qla2xxx [0000:b0:00.1]-ffffff:2: SET ZIO Activity exchange threshold to 5.
[154565.539974] qla2xxx [0000:b0:00.1]-5013:2: RSCN database changed – 0078 0080 0000.
[154565.545744] qla2xxx [0000:b0:00.1]-5013:2: RSCN database changed – 0078 00a0 0000.
[154565.545857] qla2xxx [0000:b0:00.1]-11a2:2: FEC=enabled (data rate).
[154565.552760] qla2xxx [0000:b0:00.1]-11a2:2: FEC=enabled (data rate).
[154565.553079] BUG: kernel NULL pointer dereference, address: 00000000000000f8
[154565.553080] #PF: supervisor read access in kernel mode
[154565.553082] #PF: error_code(0x0000) - not-present page
[154565.553084] PGD 80000010488ab067 P4D 80000010488ab067 PUD 104978a067 PMD 0
[154565.553089] Oops: 0000 1 PREEMPT SMP PTI
[154565.553092] CPU: 10 PID: 858 Comm: qla2xxx_2_dpc Kdump: loaded Tainted: G           OE     -------  ---  5.14.0-503.11.1.el9_5.x86_64 #1
[154565.553096] Hardware name: HPE Synergy 660 Gen10/Synergy 660 Gen10 Compute Module, BIOS I43 09/30/2024
[154565.553097] RIP: 0010:qla_fab_async_scan.part.0+0x40b/0x870 [qla2xxx]
[154565.553141] Code: 00 00 e8 58 a3 ec d4 49 89 e9 ba 12 20 00 00 4c 89 e6 49 c7 c0 00 ee a8 c0 48 c7 c1 66 c0 a9 c0 bf 00 80 00 10 e8 15 69 00 00 <4c> 8b 8d f8 00 00 00 4d 85 c9 74 35 49 8b 84 24 00 19 00 00 48 8b
[154565.553143] RSP: 0018:ffffb4dbc8aebdd0 EFLAGS: 00010286
[154565.553145] RAX: 0000000000000000 RBX: ffff8ec2cf0908d0 RCX: 0000000000000002
[154565.553147] RDX: 0000000000000000 RSI: ffffffffc0a9c896 RDI: ffffb4dbc8aebd47
[154565.553148] RBP: 0000000000000000 R08: ffffb4dbc8aebd45 R09: 0000000000ffff0a
[154565.553150] R10: 0000000000000000 R11: 000000000000000f R12: ffff8ec2cf0908d0
[154565.553151] R13: ffff8ec2cf090900 R14: 0000000000000102 R15: ffff8ec2cf084000
[154565.553152] FS:  0000000000000000(0000) GS:ffff8ed27f800000(0000) knlGS:0000000000000000
[154565.553154] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[154565.553155] CR2: 00000000000000f8 CR3: 000000113ae0a005 CR4: 00000000007706f0
[154565.553157] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[154565.553158] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[154565.553159] PKRU: 55555554
[154565.553160] Call Trace:
[154565.553162]  <TASK>
[154565.553165]  ? show_trace_log_lvl+0x1c4/0x2df
[154565.553172]  ? show_trace_log_lvl+0x1c4/0x2df
[154565.553177]  ? qla_fab_async_scan.part.0+0x40b/0x870 [qla2xxx]
[154565.553215]  ? __die_body.cold+0x8/0xd
[154565.553218]  ? page_fault_oops+0x134/0x170
[154565.553223]  ? snprintf+0x49/0x70
[154565.553229]  ? exc_page_fault+0x62/0x150
[154565.553238]  ? asm_exc_page_fault+0x22/0x30

Check for sp being non NULL before freeing any associated memory

The Linux kernel CVE team has assigned CVE-2025-71236 to this issue.


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

	Fixed in 6.6.125 with commit 949010291bb941d53733ed08a33454254d9afb1b
	Fixed in 6.12.72 with commit 40ae93668226b610edb952c6036f607a61750b57
	Fixed in 6.18.11 with commit 1a9585e4c58d1f1662b3ca46110ed4f583082ce5
	Fixed in 6.19.1 with commit 944378ead9a48d5d50e9e3cc85e4cdb911c37ca1

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-2025-71236
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_gs.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/949010291bb941d53733ed08a33454254d9afb1b
	https://git.kernel.org/stable/c/40ae93668226b610edb952c6036f607a61750b57
	https://git.kernel.org/stable/c/1a9585e4c58d1f1662b3ca46110ed4f583082ce5
	https://git.kernel.org/stable/c/944378ead9a48d5d50e9e3cc85e4cdb911c37ca1
	https://git.kernel.org/stable/c/b6df15aec8c3441357d4da0eaf4339eb20f5999f