PT-2024-36912 · Linux+8 · Linux Kernel+8
Ignat Korchagin
·
Published
2024-10-15
·
Updated
2026-05-26
·
CVE-2024-56604
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.74
Description
A vulnerability in the Linux kernel's Bluetooth RFCOMM implementation could lead to a use-after-free issue. This occurs because
bt sock alloc() attaches an allocated sk object to the provided sock object, and if rfcomm dlc alloc() fails, the sk object is released, but a dangling pointer remains in the sock object. The issue is resolved by swapping the calls to bt sock alloc() and rfcomm dlc alloc().Recommendations
For Linux kernel versions prior to 6.6.74, update to version 6.6.74 or later to resolve the issue. As a temporary workaround, consider restricting the use of Bluetooth RFCOMM functionality until the update is applied.
Exploit
Fix
DoS
Double Free
Use After Free
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu