vulnerability

Red Hat: CVE-2024-56604: kernel: Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() (Multiple Advisories)

Severity
7
CVSS
(AV:A/AC:L/Au:M/C:C/I:C/A:C)
Published
Dec 27, 2024
Added
May 15, 2025
Modified
May 15, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()

bt_sock_alloc() attaches allocated sk object to the provided sock object.
If rfcomm_dlc_alloc() fails, we release the sk object, but leave the
dangling pointer in the sock object, which may cause use-after-free.

Fix this by swapping calls to bt_sock_alloc() and rfcomm_dlc_alloc().

Solution(s)

redhat-upgrade-kernelredhat-upgrade-kernel-rt
Title
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