PT-2024-10464 · Linux+5 · Linux Kernel+5
Syzbot
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Published
2024-07-30
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Updated
2025-09-29
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CVE-2024-42132
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.43
Description
The issue is related to a Bluetooth handle overflow in the Linux kernel. It is caused by a handle bigger than HCI CONN HANDLE MAX being passed by hci le big sync established evt(), which makes the code think it's an unset connection. This results in a warning in hci conn del() caused by freeing a handle that was not allocated using the ida allocator. To prevent this warning, a check for the handle upper bound has been added, similar to the one in hci conn set handle().
Recommendations
Update to Linux kernel version 6.6.43 or later to resolve the issue.
As a temporary workaround, consider restricting access to the Bluetooth functionality until the update is applied.
Exploit
Fix
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Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu