7.8
Élevée
CVE-2026-46323 In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skb_gro_receive()…
Description
In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skb_gro_receive() can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFL_MANAGED_FRAG_REFS flag. When SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference on the pages in shinfo->frags. Appending those frags to another skb's frags without fixing up the page refcount can lead to UAF. When either the last skb in the GRO chain (the one we would append frags to) or the source skb is zerocopy, don't merge the skbs.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.1 | premières → < 7.1 | 7.1 |
| Linux 7.0 | premières → < 7.0.11 | 7.0.11 |
| Linux 6.18 | premières → < 6.18.34 | 6.18.34 |
| Linux 6.12 | premières → < 6.12.92 | 6.12.92 |
| Linux 6.6 | premières → < 6.6.142 | 6.6.142 |
| Linux 6.1 | premières → < 6.1.176 | 6.1.176 |
| Linux | 6.0 | Pas de correctif indiqué |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Versions non publiées | |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Versions non publiées |
Afficher les 36 autres branches Masquer les 36 autres branches
Autres CVE de Linux
Les 18300 CVE de Linux →
CVE-2026-99284
net: skbuff: propagate shared-frag marker in skb_zerocopy()
Non notée
CVE-2026-99283
netfilter: conntrack: tcp: use UNACK timeout for non-closing RST packets
Non notée
CVE-2026-99281
tun: Require CAP_NET_ADMIN to attach to an ownerless device
Non notée
CVE-2026-99282
net/sched: sch_teql: fix use-after-free on lower qdisc drop
Non notée