Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2 scsi asd_pci_remove use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2. The affected element is the function asd_pci_remove of the component scsi. This manipulation causes use after free. This vulnerability is tracked as CVE-2025-71075. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2. Affected by this vulnerability is the function asd_pci_remove of the component scsi. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. 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: aic94xx: fix use-after-free in device removal path The asd_pci_remove() function fails to synchronize with pending tasklets before freeing the asd_ha structure, leading to a potential use-after-free vulnerability. When a device removal is triggered (via hot-unplug or module unload), race condition can occur. The fix adds tasklet_kill() before freeing the asd_ha structure, ensuring all scheduled tasklets complete before cleanup proceeds.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-71075 since 01/13/2026. The exploitation appears to be easy. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/31/2026).

The vulnerability scanner Nessus provides a plugin with the ID 298680 (Debian dla-4475 : ata-modules-5.10.0-35-armmp-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.160, 6.6.120, 6.12.64, 6.18.3 or 6.19-rc1 eliminates this vulnerability. Applying the patch b3e655e52b98a1d3df41c8e42035711e083099f8/e354793a7ab9bb0934ea699a9d57bcd1b48fc27b/a41dc180b6e1229ae49ca290ae14d82101c148c3/751c19635c2bfaaf2836a533caa3663633066dcf/f6ab594672d4cba08540919a4e6be2e202b60007 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 vulnerability database at Tenable (298680). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

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

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: 298680
Nessus Name: Debian dla-4475 : ata-modules-5.10.0-35-armmp-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.160/6.6.120/6.12.64/6.18.3/6.19-rc1
Patch: b3e655e52b98a1d3df41c8e42035711e083099f8/e354793a7ab9bb0934ea699a9d57bcd1b48fc27b/a41dc180b6e1229ae49ca290ae14d82101c148c3/751c19635c2bfaaf2836a533caa3663633066dcf/f6ab594672d4cba08540919a4e6be2e202b60007

Timelineinfo

01/13/2026 Advisory disclosed
01/13/2026 +0 days CVE reserved
01/13/2026 +0 days VulDB entry created
03/31/2026 +77 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71075 (🔒)
GCVE (CVE): GCVE-0-2025-71075
GCVE (VulDB): GCVE-100-340687

Entryinfo

Created: 01/13/2026 18:01
Updated: 03/31/2026 16:34
Changes: 01/13/2026 18:01 (59), 02/16/2026 13:34 (2), 03/25/2026 20:29 (11), 03/31/2026 16:34 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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