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CVE-2025-21703 In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q.qlen before…

Description

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() qdisc_tree_reduce_backlog() notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it would miss the opportunity to call cops->qlen_notify(), in the case of DRR, it resulted in UAF since DRR uses ->qlen_notify() to maintain its active list.

Produits et versions touchés

Produit Versions touchées Corrigé en
Linux 6.14 premières → < 6.14 6.14
Linux 6.13 6.13.3
Linux 6.12 premières → < 6.12.14 6.12.14
Linux 6.6 premières → < 6.6.78 6.6.78
Linux 6.1 premières → < 6.1.129 6.1.129
Linux 5.15 premières → < 5.15.179 5.15.179
Linux 5.10 premières → < 5.10.235 5.10.235
Linux 5.4 premières → < 5.4.291 5.4.291
SIMATIC S7-1500 TM MFP - BIOS Versions non publiées
Afficher l’autre branche
Produit Versions touchées Corrigé en
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Versions non publiées

Références

Chronologie

  1. Publiée
  2. Dernière modification

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