PT-2026-128439

Published

2026-10-18

·

Updated

2026-10-18

Description by

Score
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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.
Vendors
Affected products
Related identifiers
AZL-108836
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