01 Record

CVE-2025-22077

Revert "smb: client: fix TCP timers deadlock after rmmod"

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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02 Description

Revert "smb: client: fix TCP timers deadlock after rmmod"

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 31.6% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-15.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-04-16 14:12Z1 YR AGO

Last updated

2026-10-15 21:51Z13 DAYS AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-667Improper LockingClass
CWE-416Use After FreeVariant

Data version

5.2

Document digest

03065e998aa9d4e19bc6a7b30552f7e29a5308008ab5522aab57b747ab198b26

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux906807c734ed219dcb2e7bbfde5c4168ed72a3d0 to < 8dbf060480236877703bff0106fc984576184d11, 127e907e11ccd54b59bb78fc22c43ccb76c71079 to < f761eeefd531e6550cd3a5c047835b4892acb00d, e9f2517a3e18a54a3943c098d2226b245d488801 to < 4b6f6bf1bde8d6045c389fda8d21c304dfe49384, e9f2517a3e18a54a3943c098d2226b245d488801 to < 95d2b9f693ff2a1180a23d7d59acc0c4e72f4c41, 6.6.68 to < 6.6.88, 6.12.7 to < 6.12.25, 6.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/8dbf060480236877703bff0106fc984576184d11
git.kernel.orghttps://git.kernel.org/stable/c/f761eeefd531e6550cd3a5c047835b4892acb00d
git.kernel.orghttps://git.kernel.org/stable/c/4b6f6bf1bde8d6045c389fda8d21c304dfe49384
git.kernel.orghttps://git.kernel.org/stable/c/95d2b9f693ff2a1180a23d7d59acc0c4e72f4c41

07 Fixed in

Debian 13

linux
Fixed in 6.12.25-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.12.25-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.