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BUG: KMSAN: uninit-value in l2cap_sock_setsockopt+0x1a6d/0x30d0 net/bluetooth/l2cap_sock.c:983
 l2cap_sock_setsockopt+0x1a6d/0x30d0 net/bluetooth/l2cap_sock.c:983
 do_sock_setsockopt+0x4bb/0x7d0 net/socket.c:2311
 __sys_setsockopt+0x33a/0x4b0 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __x64_sys_setsockopt+0xe8/0x170 net/socket.c:2340
 x64_sys_call+0x13bb/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:55
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:3804 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 __do_kmalloc_node mm/slub.c:3965 [inline]
 __kmalloc+0x6e4/0x1000 mm/slub.c:3979
 kmalloc include/linux/slab.h:632 [inline]
 __cgroup_bpf_run_filter_setsockopt+0x1107/0x1340 kernel/bpf/cgroup.c:1869
 do_sock_setsockopt+0x67f/0x7d0 net/socket.c:2293
 __sys_setsockopt+0x33a/0x4b0 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __x64_sys_setsockopt+0xe8/0x170 net/socket.c:2340
 x64_sys_call+0x13bb/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:55
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 PID: 5238 Comm: syz-executor.3 Not tainted 6.9.0-rc3-syzkaller-00023-g2c71fdf02a95 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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