01 Record

CVE-2026-90179

apparmor: fix deadlock in complain-mode change_hat

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

apparmor: fix deadlock in complain-mode change_hat

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.20% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 11.0% of scored records. A rank, not a probability.
NVD base score: The NVD has published no score for this record
NVD CVSS vector: No NVD score to derive
NVD analysis status: Received. NVD last modified this record on 2026-10-21.
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

2026-09-17 16:07Z1 MO AGO

Last updated

2026-10-21 12:50Z7 DAYS AGO

Reserved

2026-09-11

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-833DeadlockBase

Data version

5.2

Document digest

77212fda08a0dac9ad6084795bdb9218fda586b0f6e5c0fe1ab97a6e669826a2

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux5acb878db41328dae4d3249bc87b9ee4f290a663 to < 5f1fedccf3f7add5e2a1205ac4938fa3893c5874, 6446dbe02f4a3592bf062b4d12105927993086af to < 91fce09d89b2d397996226216820f0e8b8149e22, b427061ca498309bf581bb6f8df4ffcfe4c772cd to < 00cce5e457cb690a3b3b3d334e76e71049ec8ae5, 32e92764d6f8d251c1bca62be33793287b453a81 to < 072fb5aeec2eac7d445bf28c7119a1d6f6a2e333, 32e92764d6f8d251c1bca62be33793287b453a81 to < 4ec11f14d1d6fdda787d991b142537be7841d395, 862ae1fcc78aea9acab2ac87cccf6431f4682b8e, 65f95c1e7ce70bf339504e22473879e02026cfc4, 9735e300a1c9259bfe4dc5ecdba472bb25574e8a, 67ee65ec1a3eebdde76ccaa664d20dcf5b125a2f, 6.6.145 to < 6.6.160, 6.12.97 to < 6.12.114, 6.18.40 to < 6.18.52, 5.10.261 to < 5.11, 5.15.212 to < 5.16, 6.1.178 to < 6.2, 7.1.5 to < 7.2, 7.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/5f1fedccf3f7add5e2a1205ac4938fa3893c5874
git.kernel.orghttps://git.kernel.org/stable/c/91fce09d89b2d397996226216820f0e8b8149e22
git.kernel.orghttps://git.kernel.org/stable/c/00cce5e457cb690a3b3b3d334e76e71049ec8ae5
git.kernel.orghttps://git.kernel.org/stable/c/072fb5aeec2eac7d445bf28c7119a1d6f6a2e333
git.kernel.orghttps://git.kernel.org/stable/c/4ec11f14d1d6fdda787d991b142537be7841d395

07 Fixed in

Debian 12

linux
No fix yet

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

Debian 13

linux
No fix yet

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

Debian 14

linux
Fixed in 7.2.6-1

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