PT-2026-26048 · Linux · Linux Kernel
Publicado
2026-01-01
·
Atualizado
2026-05-26
·
CVE-2026-23245
CVSS v3.1
7.8
Alta
| Vetor | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains an issue in the networking scheduler (
net/sched) related to the act gate action. Specifically, the act gate action can be replaced while a hrtimer callback or dump path is traversing the schedule list. This can lead to inconsistencies when handling the schedule list. The resolution involves converting parameters to an RCU-protected snapshot and swapping updates under tcf lock, freeing the previous snapshot via call rcu(). When a replacement omits the entry list, the existing schedule is preserved to maintain the effective state.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Race Condition
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Linux Kernel