8.1
Élevée
CVE-2026-53254 In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: validate skb length in MCC…
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: validate skb length in MCC handlers The RFCOMM MCC handlers cast skb->data to protocol-specific structs without validating skb->len first. A malicious remote device can send truncated MCC frames and trigger out-of-bounds reads in these handlers. Fix this by using skb_pull_data() to validate and access the required data before dereferencing it. rfcomm_recv_rpn() requires special handling since ETSI TS 07.10 allows 1-byte RPN requests. Handle this by validating only the DLCI byte first, and validating the full struct only when len > 1.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.1 | premières → < 7.1 | 7.1 |
| Linux 7.0 | premières → < 7.0.13 | 7.0.13 |
| Linux 6.18 | premières → < 6.18.36 | 6.18.36 |
| Linux 6.12 | premières → < 6.12.94 | 6.12.94 |
| Linux 6.6 | premières → < 6.6.143 | 6.6.143 |
| Linux 6.1 | premières → < 6.1.176 | 6.1.176 |
| Linux 5.15 | premières → < 5.15.210 | 5.15.210 |
| Linux | 2.6.12 | Pas de correctif indiqué |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions non publiées |
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-2026-99282
net/sched: sch_teql: fix use-after-free on lower qdisc drop
Non notée
CVE-2026-99281
tun: Require CAP_NET_ADMIN to attach to an ownerless device
Non notée