CVEvulnerability
CVE-2026-98602
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough
Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing:
1. In bnep_rx_frame() and bnep_ctrl_frame() (net/bluetooth/bnep/core.c),
use pskb_may_pull() to verify the BNEP header, control type byte,
filter count, and extension headers exist before reading them, and
return 0 after handling BNEP_CONTROL instead of falling through to
Ethernet frame submission when no extension headers follow.
2. In bnep_net_xmit() (net/bluetooth/bnep/netdev.c), verify skb->len >=
ETH_HLEN with pskb_may_pull() before reading the 14-byte Ethernet
header to prevent an out-of-bounds heap read and infoleak on short
AF_PACKET TX frames.
References
- https://git.kernel.org/stable/c/035f9b1809861967e58ce652680d70ea1502058f git.kernel.org
- https://git.kernel.org/stable/c/1e7aebc188f889b56c3aaeb6133ef6d77022c887 git.kernel.org
- https://git.kernel.org/stable/c/3e605ff5932afe0970c2beca66f2f1ba2babe4dd git.kernel.org
- https://git.kernel.org/stable/c/667aa703e11cdc237d169393bc6a5ea9acbb33c2 git.kernel.org
- https://git.kernel.org/stable/c/7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca git.kernel.org
- https://git.kernel.org/stable/c/8f31031326994d1abfcc6ebb6927ef96e51fb9ff git.kernel.org
- https://git.kernel.org/stable/c/ad0d2d4ada51321db787262ef343193c712b76b5 git.kernel.org
- https://git.kernel.org/stable/c/f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e git.kernel.org