kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 12516 Comm: syz-executor.2 Not tainted 4.4.174+ #17 task: ffff88019d778000 task.stack: ffff88019d780000 RIP: 0010:[] [] __lock_acquire+0x5f3/0x4f50 kernel/locking/lockdep.c:3092 RSP: 0018:ffff88019d7874b0 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: ffff88019d778000 RCX: 0000000000000001 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff88019d787630 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff82836880 R11: ffffffff831a5078 R12: ffff88019d778000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8801db700000(0063) knlGS:00000000f551eb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000008484bb8 CR3: 00000001d4cb3000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff8123a761 ffff88019d787578 ffff88019d778908 ffff88019d7788c0 ffff88019d778910 ffffffff00000001 ffff88019d778908 ffff88019d7788c0 ffff88019d778910 ffff880100000000 ffff880100000002 ffff880100000000 Call Trace: [] lock_acquire+0x15e/0x450 kernel/locking/lockdep.c:3592 [] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:137 [inline] [] _raw_spin_lock_bh+0x3c/0x50 kernel/locking/spinlock.c:175 [] spin_lock_bh include/linux/spinlock.h:307 [inline] [] nfulnl_set_mode net/netfilter/nfnetlink_log.c:250 [inline] [] nfulnl_recv_config+0x455/0x1120 net/netfilter/nfnetlink_log.c:909 [] nfnetlink_rcv_msg+0x9f9/0xc20 net/netfilter/nfnetlink.c:215 [] netlink_rcv_skb+0xd4/0x2e0 net/netlink/af_netlink.c:2361 [] nfnetlink_rcv+0x989/0x12b0 net/netfilter/nfnetlink.c:479 [] netlink_unicast_kernel net/netlink/af_netlink.c:1277 [inline] [] netlink_unicast+0x4d7/0x700 net/netlink/af_netlink.c:1303 [] netlink_sendmsg+0x6b6/0xc80 net/netlink/af_netlink.c:1859 [] sock_sendmsg_nosec net/socket.c:638 [inline] [] sock_sendmsg+0xbe/0x110 net/socket.c:648 [] sock_write_iter+0x235/0x3d0 net/socket.c:847 [] new_sync_write fs/read_write.c:480 [inline] [] __vfs_write+0x2e8/0x3d0 fs/read_write.c:493 [] vfs_write+0x182/0x4e0 fs/read_write.c:540 [] SYSC_write fs/read_write.c:587 [inline] [] SyS_write+0xdc/0x1c0 fs/read_write.c:579 [] do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] [] do_fast_syscall_32+0x32d/0xa90 arch/x86/entry/common.c:397 [] sysenter_flags_fixed+0xd/0x1a Code: 0f 85 7f 32 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 8b 94 24 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 a7 33 00 00 48 8b 84 24 88 00 00 00 48 81 38 RIP [] __lock_acquire+0x5f3/0x4f50 kernel/locking/lockdep.c:3092 RSP ---[ end trace 52517aeab6dce326 ]---