CVE-2024-35966

Bluetooth: RFCOMM: Fix not validating setsockopt user input

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Fix not validating setsockopt user input syzbot reported rfcomm_sock_setsockopt_old() is copying data without checking user input length. BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt_old net/bluetooth/rfcomm/sock.c:632 [inline] BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt+0x893/0xa70 net/bluetooth/rfcomm/sock.c:673 Read of size 4 at addr ffff8880209a8bc3 by task syz-executor632/5064

N/A

CVSS

Severity:

EPSS 0.29%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/d072ea24748189cd8f4a9c3f585ca9af073a0838
https://git.kernel.org/stable/c/00767fbd67af70d7a550caa5b12d9515fa978bab
https://git.kernel.org/stable/c/eea40d33bf936a5c7fb03c190e61e0cfee00e872
https://git.kernel.org/stable/c/4ea65e2095e9bd151d0469328dd7fc2858feb546
https://git.kernel.org/stable/c/c3f787a3eafe519c93df9abbb0ca5145861c8d0f
https://git.kernel.org/stable/c/a97de7bff13b1cc825c1b1344eaed8d6c2d3e695

Frequently Asked Questions

What is the severity of CVE-2024-35966?: CVE-2024-35966 has not yet been assigned a CVSS score.
How to fix CVE-2024-35966?: To fix CVE-2024-35966, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-35966 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-35966 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-35966?: CVE-2024-35966 affects Linux Linux, Linux Linux.

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