CVE-2026-72383

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-72383

Key Details

CVE	CVE-2026-72383
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
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:

sctp: fix addr_wq_timer race in sctp_free_addr_wq()

sctp_free_addr_wq() previously removed addr_wq_timer using timer_delete()

while holding addr_wq_lock. However, timer_delete() does not guarantee that

a currently running timer handler has completed.

This allows a race with sctp_addr_wq_timeout_handler(), where the handler

may still run after addr_waitq has been freed, acquire addr_wq_lock, and

access freed memory, leading to a use-after-free.

Fix this by calling timer_shutdown_sync() before taking addr_wq_lock. This

guarantees that any in-flight timer handler has finished and prevents the

timer from being re-armed during teardown, making subsequent cleanup safe. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-72383
CVE	https://www.cve.org/CVERecord?id=CVE-2026-72383

Source

Reference

NVD

CVE