Linux Kernel up to 6.6.124/6.12.71/6.18.10/6.19.0 Delay qla24xx_sp_unmap allocation of resources

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4.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.6.124/6.12.71/6.18.10/6.19.0. This vulnerability affects the function qla24xx_sp_unmap of the component Delay Module. Such manipulation leads to allocation of resources. This vulnerability is traded as CVE-2025-71235. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was 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 issue is the function qla24xx_sp_unmap of the component Delay Module. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Delay module unload while fabric scan in progress System crash seen during load/unload test in a loop. [105954.384919] RBP: ffff914589838dc0 R08: 0000000000000000 R09: 0000000000000086 [105954.384920] R10: 000000000000000f R11: ffffa31240904be5 R12: ffff914605f868e0 [105954.384921] R13: ffff914605f86910 R14: 0000000000008010 R15: 00000000ddb7c000 [105954.384923] FS: 0000000000000000(0000) GS:ffff9163fec40000(0000) knlGS:0000000000000000 [105954.384925] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [105954.384926] CR2: 000055d31ce1d6a0 CR3: 0000000119f5e001 CR4: 0000000000770ee0 [105954.384928] PKRU: 55555554 [105954.384929] Call Trace: [105954.384931] <IRQ> [105954.384934] qla24xx_sp_unmap+0x1f3/0x2a0 [qla2xxx] [105954.384962] ? qla_async_scan_sp_done+0x114/0x1f0 [qla2xxx] [105954.384980] ? qla24xx_els_ct_entry+0x4de/0x760 [qla2xxx] [105954.384999] ? __wake_up_common+0x80/0x190 [105954.385004] ? qla24xx_process_response_queue+0xc2/0xaa0 [qla2xxx] [105954.385023] ? qla24xx_msix_rsp_q+0x44/0xb0 [qla2xxx] [105954.385040] ? __handle_irq_event_percpu+0x3d/0x190 [105954.385044] ? handle_irq_event+0x58/0xb0 [105954.385046] ? handle_edge_irq+0x93/0x240 [105954.385050] ? __common_interrupt+0x41/0xa0 [105954.385055] ? common_interrupt+0x3e/0xa0 [105954.385060] ? asm_common_interrupt+0x22/0x40 The root cause of this was that there was a free (dma_free_attrs) in the interrupt context. There was a device discovery/fabric scan in progress. A module unload was issued which set the UNLOADING flag. As part of the discovery, after receiving an interrupt a work queue was scheduled (which involved a work to be queued). Since the UNLOADING flag is set, the work item was not allocated and the mapped memory had to be freed. The free occurred in interrupt context leading to system crash. Delay the driver unload until the fabric scan is complete to avoid the crash.

The weakness was shared by The discovery. The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2025-71235 since 02/18/2026. The exploitation is known to be difficult. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 299440 (Linux Distros Unpatched Vulnerability : CVE-2025-71235), 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 528b2f1027edfb52af0171f0f4b227fb356dde05/d70f71d4c92bcb8b6a21ac62d4ea3e87721f4f32/c068ebbaf52820d6bdefb9b405a1e426663c635a/7062eb0c488f35730334daad9495d9265c574853 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 (299440) and CERT Bund (WID-SEC-2026-0462). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
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: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
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: 299440
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71235

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: 528b2f1027edfb52af0171f0f4b227fb356dde05/d70f71d4c92bcb8b6a21ac62d4ea3e87721f4f32/c068ebbaf52820d6bdefb9b405a1e426663c635a/7062eb0c488f35730334daad9495d9265c574853

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
Researcher: The discovery
Status: Confirmed

CVE: CVE-2025-71235 (🔒)
GCVE (CVE): GCVE-0-2025-71235
GCVE (VulDB): GCVE-100-346514
CERT Bund: WID-SEC-2026-0462 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 02/18/2026 16:45
Updated: 03/19/2026 09:01
Changes: 02/18/2026 16:45 (60), 02/20/2026 00:19 (7), 02/20/2026 02:01 (2), 02/23/2026 05:46 (2), 03/19/2026 09:01 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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