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🛡️ CVE-2025-68745 — kernel

🔴 CVSS 9.8 — Critical ✅ No Known Exploit NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

scsi: qla2xxx: Clear cmds after chip reset

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2025-68745 is recorded against 2 packages.

  • kernel (from 5.2.0 up to 6.18.2)
  • unknown

Timeline and source

Published on 24 December 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2025-68745 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Critical
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-12-24
Updated 2026-08-20
Modified 2026-08-12
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel 5.2.0 6.18.2
unknown — —

Similar Threats

Exploit Protection

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CVE-2025-68745 carries CVSS 9.8 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.