CVE-2026-68138: net/sched: serialize qdisc_rtab_list against concurrent get/put

Overview

Severity

High (CVSS 7.1)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-11

Last Updated

2026-09-24

EPSS Score

0.17% (percentile: 5.7%)

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 3 repositories

Affected Products (2)

Other

• 21892-17084
• 21684-17084

Revision History

• 2026-08-11: Information published.
• 2026-09-23: Information published.
• 2026-09-23: Information published.
• 2026-09-24: Information published.