The vulnerability of the qlen_notify() function in the sched component of Linux kernel devices allows a hacker to trigger a service failure.

🗓️ 28 Oct 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType

bdu_fstec🔗 bdu.fstec.ru👁 5 Views

Vulnerability in qlen_notify in Linux kernel sched allows use after free, risking service failure.

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Source	Link
git	www.git.kernel.org/stable/c/103406b38c600fec1fe375a77b27d87e314aea09
git	www.git.kernel.org/stable/c/3b290923ad2b23596208c1e29520badef4356a43
git	www.git.kernel.org/stable/c/7874c9c132e906a52a187d045995b115973c93fb
git	www.git.kernel.org/stable/c/a44acdd9e84a211989ff4b9b92bf3545d8456ad5
git	www.git.kernel.org/stable/c/a553afd91f55ff39b1e8a1c4989a29394c9e0472
git	www.git.kernel.org/stable/c/e269f29e9395527bc00c213c6b15da04ebb35070
git	www.git.kernel.org/stable/c/e9921b57dca05ac5f4fa1fa8e993d4f0ee52e2b7
git	www.git.kernel.org/stable/c/f680a4643c6f71e758d8fe0431a958e9a6a4f59d
wiki	www.wiki.astralinux.ru/astra-linux-se18-bulletin-2025-1113SE18
wiki	www.wiki.astralinux.ru/astra-linux-se17-bulletin-2025-1202SE17

17 Feb 2026 00:00Current

6.7Medium risk

Vulners AI Score6.7

CVSS 26

CVSS 37

EPSS0.00185

qlen_notify Linux kernel sched component memory after free use after free service failure