01 Record

CVE-2026-80589

block: stop the timeout timer when releasing a never added disk

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

block: stop the timeout timer when releasing a never added disk

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 30.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-16.

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

2026-08-26 14:37Z2 MO AGO

Last updated

2026-10-16 19:26Z13 DAYS AGO

Reserved

2026-08-26

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-825Expired Pointer DereferenceBase
CWE-416Use After FreeVariant

Data version

5.2

Document digest

157d1b5a7d0c150a2d97374de77a0d9c15e32623d63adc27613c9bd0f4b57f33

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux6f8191fdf41d3a53cc1d63fe2234e812c55a0092 to < 6ae7364f68e6c7af6b6df4bbb14040b89e5975d0, 6f8191fdf41d3a53cc1d63fe2234e812c55a0092 to < 6f06dbe5012c160e0dba418a5a9cb16c456ad46a, 6f8191fdf41d3a53cc1d63fe2234e812c55a0092 to < 1a0ae4d502062a2759f2a92d12bdeab3c64c7372, 6f8191fdf41d3a53cc1d63fe2234e812c55a0092 to < bb03b56d1d754908a37a160603be21769da423cf, 6f8191fdf41d3a53cc1d63fe2234e812c55a0092 to < 93d620519d71dfc6ee64b5baea74f1d85d4439fb, 6f8191fdf41d3a53cc1d63fe2234e812c55a0092 to < 26cb8ebbfaf713c82e142d08828d4d765057633b, d27b66257db183fe11c10f31246ae965adb005d3, 5.19.12 to < 5.20, 6.0—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/6ae7364f68e6c7af6b6df4bbb14040b89e5975d0
git.kernel.orghttps://git.kernel.org/stable/c/6f06dbe5012c160e0dba418a5a9cb16c456ad46a
git.kernel.orghttps://git.kernel.org/stable/c/1a0ae4d502062a2759f2a92d12bdeab3c64c7372
git.kernel.orghttps://git.kernel.org/stable/c/bb03b56d1d754908a37a160603be21769da423cf
git.kernel.orghttps://git.kernel.org/stable/c/93d620519d71dfc6ee64b5baea74f1d85d4439fb
git.kernel.orghttps://git.kernel.org/stable/c/26cb8ebbfaf713c82e142d08828d4d765057633b

07 Fixed in

Debian 12

linux
Fixed in 6.1.187-1
linux-6.12
Fixed in 6.12.107-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.105-1

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

Debian 14

linux
Fixed in 7.1.10-1

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