CVE-2026-99237

Last refreshed2026-11-02

Status: UPDATED | Advisory ID: CVE-2026-99237

Key Details

CVE	CVE-2026-99237
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-11-02
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:

tracing: Hold trace_types_lock when resetting last boot data from readers

update_last_data_if_empty() is called from tracing_open() with O_TRUNC,

tracing_read_pipe() and tracing_buffers_read() without trace_types_lock.

Two readers can both pass the LAST_BOOT test and free module_delta

twice, and a module notifier can update module_delta while it is being

freed.

Take trace_types_lock in those paths and keep the callers that already

hold it on an unlocked variant. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-99237
CVE	https://www.cve.org/CVERecord?id=CVE-2026-99237

Source

Reference

NVD

CVE