CVE-2026-53270

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-53270

Key Details

CVE	CVE-2026-53270
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:

ipvs: clear the svc scheduler ptr early on edit

ip_vs_edit_service() while unbinding the old scheduler clears

the svc->scheduler ptr after the scheduler module initiates

RCU callbacks. This can cause packets to use the old

scheduler at the time when svc->sched_data is already freed

after RCU grace period.

Fix it by clearing the ptr early in ip_vs_unbind_scheduler(),

before the done_service method schedules any RCU callbacks.

Also, if the new scheduler fails to initialize when replacing

the old scheduler, try to restore the old scheduler while still

returning the error code. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-53270
CVE	https://www.cve.org/CVERecord?id=CVE-2026-53270

Source

Reference

NVD

CVE