DEBIAN-CVE-2026-89991: linux security update

DEBIAN-CVE-2026-89991, released September 23, 2026, fixes 1 CVE in linux (version 7.2.6-1). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

n/a

No CVSS score published

Highest EPSS

0.0021

10th percentile

Fixed package versions

Product	Release	Fixed in
linux	Debian 14	7.2.6-1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-89991	bpf: Fix infinite loop in pcpu_freelist push with one possible CPU	n/a	0.0021	None reported

Also fixes CVE-2026-89991

ALAS2023-2026-3187
bpftool6.18, bpftool6.18-debuginfo, kernel-livepatch-6.18.51-120.162 and 16 more on amzn 2023

Vendor advisory

https://security-tracker.debian.org/tracker/CVE-2026-89991

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