CVE-2026-98602

Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough

State
Published
Severity
Not scored
Published
Oct 18, 2026
Updated
Oct 19, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1caAffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 667aa703e11cdc237d169393bc6a5ea9acbb33c2Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 3e605ff5932afe0970c2beca66f2f1ba2babe4ddAffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 035f9b1809861967e58ce652680d70ea1502058fAffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1e7aebc188f889b56c3aaeb6133ef6d77022c887Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 8f31031326994d1abfcc6ebb6927ef96e51fb9ffAffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before ad0d2d4ada51321db787262ef343193c712b76b5Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91eAffected
LinuxLinux
  • 2.6.12Affected
  • before 2.6.12Not affected
  • 5.10.271 through 5.10.*Not affected
  • 5.15.222 through 5.15.*Not affected
  • 6.1.189 through 6.1.*Not affected
  • 6.6.158 through 6.6.*Not affected
  • 6.12.112 through 6.12.*Not affected
  • 6.18.55 through 6.18.*Not affected
  • 7.2.9 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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