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CVE Watch31 de out. de 2026

CVE-2026-99167

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in __tcf_action_put() __tcf_action_put()

CVSS

7.8

Alta

EPSS

0.1%

p3

KEV

—

Exploit Today

1

0-100

Publicado: 28 de out. de 2026 · Última mod.: 31 de out. de 2026

EPSS · 30d
0.1%EPSS · 30 dias0.2%
2026-10-292026-11-07
Descrição técnica

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in __tcf_action_put() __tcf_action_put() decrements the reference count before decrementing the binding count. Another thread can free the action between these operations, causing the binding-count update to access freed memory. KASAN reports it as: BUG: KASAN: slab-use-after-free in __tcf_action_put+0x327/0x340 Write of size 4 at addr ff11000000d46420 by task tc-put-pause/64 Hold the action IDR mutex across both counter updates and IDR removal, keeping cleanup outside the lock.

Referências oficiais
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