CVE-2024-56604 Information

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().

Reference

https://git.kernel.org/stable/c/32df687e129ef0f9afcbcc914f7c32deb28fd481 https://git.kernel.org/stable/c/3945c799f12b8d1f49a3b48369ca494d981ac465 https://git.kernel.org/stable/c/6021ccc2471b7b95e29b7cfc7938e042bf56e281 https://git.kernel.org/stable/c/ac3eaac4cf142a15fe67be747a682b1416efeb6e