CVE-2024-35967: Bluetooth: SCO: Fix not validating setsockopt user input

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-20 · updated 2026-10-15
Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix not validating setsockopt user input syzbot reported sco_sock_setsockopt() 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 sco_sock_setsockopt+0xc0b/0xf90 net/bluetooth/sco.c:893 Read of size 4 at addr ffff88805f7b15a3 by task syz-executor.5/12578

Affected products

Debian Linux: 10.0
Linux kernel: from 3.8 before 5.10.216; from 5.11 before 5.15.178; from 5.16 before 6.1.87; from 6.2 before 6.6.28; from 6.7 before 6.8.7; 6.9-rc1, 6.9-rc2, 6.9-rc3 — fixed in 5.10.216, 5.15.178, 6.1.87, 6.6.28, 6.8.7

How to fix

Upgrade to a fixed version: Linux kernel 5.10.216, 5.15.178, 6.1.87, 6.6.28. Check the vendor advisory for mitigations.

References

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