CVE-2026-90143

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90143

Key Details

CVE	CVE-2026-90143
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

net: kcm: Hold RCU read lock while running BPF parser

kcm_parse_func_strparser() calls bpf_prog_run_pin_on_cpu() which

prevents CPU migration, but does not establish an RCU read-side

critical section. Consequently, BPF map operations can trigger

WARN_ON_ONCE(!bpf_rcu_lock_held()) when called from the KCM strparser

program.

Hold the RCU read lock while running the program. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90143
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90143

Source

Reference

NVD

CVE