01 Record

CVE-2026-90391

lib/test_hmm: fail dmirror_fault() when the mirrored mm is gone

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

lib/test_hmm: fail dmirror_fault() when the mirrored mm is gone

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: 0.21% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 11.1% 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 2026-10-19.
Red Hat severity: Low. 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 16:09Z1 MO AGO

Last updated

2026-10-19 09:02Z10 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-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.2

Document digest

6bde077c675db890e7a79d2e0541c2daae9b94f6ebf51857be6e4e7d60dbd1f3

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb2ef9f5a5cb37643ca5def3516c546457074b882 to < 50606ced303782f8715e2d0b98ca374ea498fa29, b2ef9f5a5cb37643ca5def3516c546457074b882 to < 541a67f21ab807c8dbc0ea88d5a2eb73b2618090, b2ef9f5a5cb37643ca5def3516c546457074b882 to < d8e64ffab01e032ae29159d27230ace8cf8bdc80, b2ef9f5a5cb37643ca5def3516c546457074b882 to < 2636569ea7c19d9a40db4a1e8d0a027bdacf1569, b2ef9f5a5cb37643ca5def3516c546457074b882 to < 701347e31aa607f3782403151a3125729d685275, b2ef9f5a5cb37643ca5def3516c546457074b882 to < af7a6d6ec36a16a583ba2e4e9984c3cf1fe34655, b2ef9f5a5cb37643ca5def3516c546457074b882 to < a2074f86fc9653831e4fb7b711bb715db330f182, b2ef9f5a5cb37643ca5def3516c546457074b882 to < 6a8024511ddf4877435c34fb3d6028aa8e590649, 5.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/50606ced303782f8715e2d0b98ca374ea498fa29
git.kernel.orghttps://git.kernel.org/stable/c/541a67f21ab807c8dbc0ea88d5a2eb73b2618090
git.kernel.orghttps://git.kernel.org/stable/c/d8e64ffab01e032ae29159d27230ace8cf8bdc80
git.kernel.orghttps://git.kernel.org/stable/c/2636569ea7c19d9a40db4a1e8d0a027bdacf1569
git.kernel.orghttps://git.kernel.org/stable/c/701347e31aa607f3782403151a3125729d685275
git.kernel.orghttps://git.kernel.org/stable/c/af7a6d6ec36a16a583ba2e4e9984c3cf1fe34655
git.kernel.orghttps://git.kernel.org/stable/c/a2074f86fc9653831e4fb7b711bb715db330f182
git.kernel.orghttps://git.kernel.org/stable/c/6a8024511ddf4877435c34fb3d6028aa8e590649

07 Fixed in

Debian 12

linux
Fixed in 6.1.190-1
linux-6.12
Fixed in 6.12.111-1~deb12u1

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

Debian 13

linux
Fixed in 6.12.111-1

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.