Race condition in Linux kernel - CVE-2026-98706

Vulnerability identifier: #VU157046

CSH Severity: Low

CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-98706

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to potentially cause a denial of service.

The vulnerability exists due to a race condition in the mac80211 station teardown and power-save delivery code when removing an AP or mesh station while power-save delivery work is running. A local user can exploit overlapping teardown and delivery operations to cause driver notifications and queue updates after the corresponding station state has been removed or cleaned up, potentially causing a denial of service.

Linux kernel
SUSE Linux Micro
SUSE Linux Micro Extras
kernel-default
kernel-64kb
kernel-64kb-debugsource
kernel-64kb-devel
kernel-default-devel
kernel-syms
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-debugsource
kernel-default-devel-debuginfo

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-default - update to 6.4.0-159998.55.1
kernel-64kb - update to 6.4.0-159998.55.1
kernel-64kb-debugsource - update to 6.4.0-159998.55.1
kernel-64kb-devel - update to 6.4.0-159998.55.1
kernel-default-devel - update to 6.4.0-159998.55.1
kernel-syms - update to 6.4.0-159998.55.1
kernel-obs-build - update to 6.4.0-159998.55.1
kernel-obs-build-debugsource - update to 6.4.0-159998.55.1
kernel-default-debugsource - update to 6.4.0-159998.55.1
kernel-default-devel-debuginfo - update to 6.4.0-159998.55.1

• https://git.kernel.org/stable/c/097460fcdd8ab9ef6f6018b2fdc29ba0ea499298
• https://git.kernel.org/stable/c/67a9e80c3ca20c9044cd6ee72cd6278dd19b5023
• https://git.kernel.org/stable/c/772bd89304ecf057cc51ce4ce24a1a96ac9c8de3
• https://git.kernel.org/stable/c/843d3a1e6f25027ac85f88f67b95d82c67306dee
• https://git.kernel.org/stable/c/cbff71fe689f359ebd6a3eaded035ef75226afce

• Race condition in Linux kernel mac80211
• SUSE update for the Linux Kernel