CVE-2025-68745: scsi: qla2xxx: Clear cmds after chip reset

Critical severity · published Dec 24, 2025

CVE-2025-68745

scsi: qla2xxx: Clear cmds after chip reset

9.8

CVSS

0.5%

EPSS

On KEV

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Clear cmds after chip reset Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling and host reset handling") caused two problems: 1. Commands sent to FW, after chip reset got stuck and never freed as FW is not going to respond to them anymore. 2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a ("scsi: qla2xxx: Fix missed DMA unmap for aborted commands") attempted to fix this, but introduced another bug under different circumstances when two different CPUs were racing to call qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in dma_unmap_sg_attrs(). So revert "scsi: qla2xxx: Fix missed DMA unmap for aborted commands" and partially revert "scsi: qla2xxx: target: Fix offline port handling and host reset handling" at __qla2x00_abort_all_cmds.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.5% · higher than 43% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Linux · Linux

aefed3e5548f28e5fecafda6604fcbc65484dbaa before 0d0a1a267c1ee7c41aeffdca84afcb113787a91a; aefed3e5548f28e5fecafda6604fcbc65484dbaa before c82c0fbb97d0fd44324eb55ab758408c7c964b32; aefed3e5548f28e5fecafda6604fcbc65484dbaa before 5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936; aefed3e5548f28e5fecafda6604fcbc65484dbaa before d46c69a087aa3d1513f7a78f871b80251ea0c1ae; eb67b7a23d357f578578e737cb6412ae2384f352; ec9639d92c1e10d4bc667e842753d85e21683d5c; +5 more · source: vendor

Affected product

Linux

All Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-68745

CVE.org

https://www.cve.org/CVERecord?id=CVE-2025-68745

git.kernel.org

https://git.kernel.org/stable/c/0d0a1a267c1ee7c41aeffdca84afcb113787a91a

git.kernel.org

https://git.kernel.org/stable/c/5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936

git.kernel.org

https://git.kernel.org/stable/c/c82c0fbb97d0fd44324eb55ab758408c7c964b32

git.kernel.org

https://git.kernel.org/stable/c/d46c69a087aa3d1513f7a78f871b80251ea0c1ae