01 Record

CVE-2026-90274

coresight: etm4x: fix underflow for usage of (nrseqstate - 1)

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

coresight: etm4x: fix underflow for usage of (nrseqstate - 1)

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: 0.17% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 6.3% 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: 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 16:08Z1 MO AGO

Last updated

2026-10-19 09:00Z10 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-191Integer Underflow (Wrap or Wraparound)Base

Data version

5.2

Document digest

33bb6a5cc0d5a80edb1f4740805458d16d51d5d6e8d83e8249fcaf3737e5dcc3

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux2e1cdfe184b5202d51e0611d7a051e2bea303946 to < 8d669db59f7283b838e029af29da12e505265fae, 2e1cdfe184b5202d51e0611d7a051e2bea303946 to < 4091f2d5b26d117c992ffcce1a5df425a0daedcd, 2e1cdfe184b5202d51e0611d7a051e2bea303946 to < be7b2de5b9a96ae68ffa3528e0a40d63e0fd8148, 2e1cdfe184b5202d51e0611d7a051e2bea303946 to < 4f9a0f548413bf864f609c9f4bc56e3f1b3577d4, 2e1cdfe184b5202d51e0611d7a051e2bea303946 to < 1ade9a335c69fc735cb7b3f222ed35ab135540fb, 2e1cdfe184b5202d51e0611d7a051e2bea303946 to < 5ac900f73ce1d4d8308f40752b51bc8a02b244d2, 2e1cdfe184b5202d51e0611d7a051e2bea303946 to < 1674d9bff8073bdee5dbc200f56fc3caa28d0566, 4.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/8d669db59f7283b838e029af29da12e505265fae
git.kernel.orghttps://git.kernel.org/stable/c/4091f2d5b26d117c992ffcce1a5df425a0daedcd
git.kernel.orghttps://git.kernel.org/stable/c/be7b2de5b9a96ae68ffa3528e0a40d63e0fd8148
git.kernel.orghttps://git.kernel.org/stable/c/4f9a0f548413bf864f609c9f4bc56e3f1b3577d4
git.kernel.orghttps://git.kernel.org/stable/c/1ade9a335c69fc735cb7b3f222ed35ab135540fb
git.kernel.orghttps://git.kernel.org/stable/c/5ac900f73ce1d4d8308f40752b51bc8a02b244d2
git.kernel.orghttps://git.kernel.org/stable/c/1674d9bff8073bdee5dbc200f56fc3caa28d0566

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.