CVE-2024-42132: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX
First published: Tue Jul 30 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX Syzbot hit warning in hci_conn_del() caused by freeing handle that was not allocated using ida allocator. This is caused by handle bigger than HCI_CONN_HANDLE_MAX passed by hci_le_big_sync_established_evt(), which makes code think it's unset connection. Add same check for handle upper bound as in hci_conn_set_handle() to prevent warning.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.6.39 | 6.6.39 |
| redhat/kernel | <6.9.9 | 6.9.9 |
| redhat/kernel | <6.10 | 6.10 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
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Reference Links
- https://git.kernel.org/stable/c/1cc18c2ab2e8c54c355ea7c0423a636e415a0c23
- https://git.kernel.org/stable/c/4970e48f83dbd21d2a6a7cdaaafc2a71f7f45dc4
- https://git.kernel.org/stable/c/d311036696fed778301d08a71a4bef737b86d8c5
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-42132
- https://nvd.nist.gov/vuln/detail/CVE-2024-42132
- https://launchpad.net/bugs/cve/CVE-2024-42132
- https://security-tracker.debian.org/tracker/CVE-2024-42132
- https://ubuntu.com/security/CVE-2024-42132
- https://git.kernel.org/linus/1cc18c2ab2e8c54c355ea7c0423a636e415a0c23
- https://lore.kernel.org/linux-cve-announce/2024073028-CVE-2024-42132-49bf@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2301989
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2301497
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