Linux Kernel up to 6.6.124/6.12.71/6.18.10/6.19.0 qla2xxx __kmem_cache_shutdown stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.6.124/6.12.71/6.18.10/6.19.0. This affects the function __kmem_cache_shutdown of the component qla2xxx. This manipulation causes stack-based overflow. This vulnerability appears as CVE-2025-71232. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.6.124/6.12.71/6.18.10/6.19.0 and classified as critical. Affected by this vulnerability is the function __kmem_cache_shutdown of the component qla2xxx. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Free sp in error path to fix system crash System crash seen during load/unload test in a loop, [61110.449331] qla2xxx [0000:27:00.0]-0042:0: Disabled MSI-X. [61110.467494] ============================================================================= [61110.467498] BUG qla2xxx_srbs (Tainted: G OE -------- --- ): Objects remaining in qla2xxx_srbs on __kmem_cache_shutdown() [61110.467501] ----------------------------------------------------------------------------- [61110.467502] Slab 0x000000000ffc8162 objects=51 used=1 fp=0x00000000e25d3d85 flags=0x57ffffc0010200(slab|head|node=1|zone=2|lastcpupid=0x1fffff) [61110.467509] CPU: 53 PID: 455206 Comm: rmmod Kdump: loaded Tainted: G OE -------- --- 5.14.0-284.11.1.el9_2.x86_64 #1 [61110.467513] Hardware name: HPE ProLiant DL385 Gen10 Plus v2/ProLiant DL385 Gen10 Plus v2, BIOS A42 08/17/2023 [61110.467515] Call Trace: [61110.467516] <TASK> [61110.467519] dump_stack_lvl+0x34/0x48 [61110.467526] slab_err.cold+0x53/0x67 [61110.467534] __kmem_cache_shutdown+0x16e/0x320 [61110.467540] kmem_cache_destroy+0x51/0x160 [61110.467544] qla2x00_module_exit+0x93/0x99 [qla2xxx] [61110.467607] ? __do_sys_delete_module.constprop.0+0x178/0x280 [61110.467613] ? syscall_trace_enter.constprop.0+0x145/0x1d0 [61110.467616] ? do_syscall_64+0x5c/0x90 [61110.467619] ? exc_page_fault+0x62/0x150 [61110.467622] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [61110.467626] </TASK> [61110.467627] Disabling lock debugging due to kernel taint [61110.467635] Object 0x0000000026f7e6e6 @offset=16000 [61110.467639] ------------[ cut here ]------------ [61110.467639] kmem_cache_destroy qla2xxx_srbs: Slab cache still has objects when called from qla2x00_module_exit+0x93/0x99 [qla2xxx] [61110.467659] WARNING: CPU: 53 PID: 455206 at mm/slab_common.c:520 kmem_cache_destroy+0x14d/0x160 [61110.467718] CPU: 53 PID: 455206 Comm: rmmod Kdump: loaded Tainted: G B OE -------- --- 5.14.0-284.11.1.el9_2.x86_64 #1 [61110.467720] Hardware name: HPE ProLiant DL385 Gen10 Plus v2/ProLiant DL385 Gen10 Plus v2, BIOS A42 08/17/2023 [61110.467721] RIP: 0010:kmem_cache_destroy+0x14d/0x160 [61110.467724] Code: 99 7d 07 00 48 89 ef e8 e1 6a 07 00 eb b3 48 8b 55 60 48 8b 4c 24 20 48 c7 c6 70 fc 66 90 48 c7 c7 f8 ef a1 90 e8 e1 ed 7c 00 <0f> 0b eb 93 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 [61110.467725] RSP: 0018:ffffa304e489fe80 EFLAGS: 00010282 [61110.467727] RAX: 0000000000000000 RBX: ffffffffc0d9a860 RCX: 0000000000000027 [61110.467729] RDX: ffff8fd5ff9598a8 RSI: 0000000000000001 RDI: ffff8fd5ff9598a0 [61110.467730] RBP: ffff8fb6aaf78700 R08: 0000000000000000 R09: 0000000100d863b7 [61110.467731] R10: ffffa304e489fd20 R11: ffffffff913bef48 R12: 0000000040002000 [61110.467731] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [61110.467733] FS: 00007f64c89fb740(0000) GS:ffff8fd5ff940000(0000) knlGS:0000000000000000 [61110.467734] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [61110.467735] CR2: 00007f0f02bfe000 CR3: 00000020ad6dc005 CR4: 0000000000770ee0 [61110.467736] PKRU: 55555554 [61110.467737] Call Trace: [61110.467738] <TASK> [61110.467739] qla2x00_module_exit+0x93/0x99 [qla2xxx] [61110.467755] ? __do_sys_delete_module.constprop.0+0x178/0x280 Free sp in the error path to fix the crash.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-71232 since 02/18/2026. The exploitation appears to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/19/2026).

The vulnerability scanner Nessus provides a plugin with the ID 299462 (Linux Distros Unpatched Vulnerability : CVE-2025-71232), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.125, 6.12.72, 6.18.11 or 6.19.1 eliminates this vulnerability. Applying the patch aed16d37696f494288a291b4b477484ed0be774b/05fcd590e5fbbb3e9e1b4fc6c23c98a1d38cf256/f04840512438ac025dea6e357d80a986b28bbe4c/19ac050ef09a2f0a9d9787540f77bb45cf9033e8 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (299462) and CERT Bund (WID-SEC-2026-0462). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299462
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71232

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.125/6.12.72/6.18.11/6.19.1
Patch: aed16d37696f494288a291b4b477484ed0be774b/05fcd590e5fbbb3e9e1b4fc6c23c98a1d38cf256/f04840512438ac025dea6e357d80a986b28bbe4c/19ac050ef09a2f0a9d9787540f77bb45cf9033e8

Timelineinfo

02/18/2026 Advisory disclosed
02/18/2026 +0 days CVE reserved
02/18/2026 +0 days VulDB entry created
03/19/2026 +29 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71232 (🔒)
GCVE (CVE): GCVE-0-2025-71232
GCVE (VulDB): GCVE-100-346513
CERT Bund: WID-SEC-2026-0462 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 02/18/2026 16:45
Updated: 03/19/2026 08:39
Changes: 02/18/2026 16:45 (59), 02/19/2026 10:47 (2), 02/19/2026 23:55 (7), 02/23/2026 05:46 (2), 03/19/2026 08:39 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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