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

kernel.org https://git.kernel.org/stable/c/419a0ffca7010216f0fc265b08558d7394fa0ba7 [No types assigned]

kernel.org https://git.kernel.org/stable/c/51eda36d33e43201e7a4fd35232e069b2c850b01 [No types assigned]

kernel.org https://git.kernel.org/stable/c/72473db90900da970a16ee50ad23c2c38d107d8c [No types assigned]

kernel.org https://git.kernel.org/stable/c/7bc65d23ba20dcd7ecc094a12c181e594e5eb315 [No types assigned]

kernel.org https://git.kernel.org/stable/c/b0e30c37695b614bee69187f86eaf250e36606ce [No types assigned]