WARNING: CPU: 1 PID: 3879 at kernel/locking/lockdep.c:772 look_up_lock_class /kernel/locking/lockdep.c:772 [inline] WARNING: CPU: 1 PID: 3879 at kernel/locking/lockdep.c:772 register_lock_class+0x206/0x1850 /kernel/locking/lockdep.c:1117 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 3879 Comm: syz-executor.0 Not tainted 5.2.0+ #93 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack /lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 /lib/dump_stack.c:113 panic+0x2dc/0x755 /kernel/panic.c:219 __warn.cold+0x20/0x4c /kernel/panic.c:576 report_bug+0x263/0x2b0 /lib/bug.c:186 fixup_bug /arch/x86/kernel/traps.c:179 [inline] fixup_bug /arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 /arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 /arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 /arch/x86/entry/entry_64.S:1008 RIP: 0010:look_up_lock_class /kernel/locking/lockdep.c:772 [inline] RIP: 0010:register_lock_class+0x206/0x1850 /kernel/locking/lockdep.c:1117 Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 aa 10 00 00 4c 3b 7b 18 44 8b 35 45 54 2f 09 74 0b 48 81 3b 20 d7 e1 89 74 02 <0f> 0b 45 85 ed 0f 84 71 03 00 00 f6 85 70 ff ff ff 01 0f 85 64 03 RSP: 0018:ffff8880954cf5a8 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: ffff88808c4c68a0 RCX: 0000000000000000 RDX: 1ffff11011898d17 RSI: 0000000000000000 RDI: ffff88808c4c68b8 RBP: ffff8880954cf670 R08: 1ffff11012a99ebd R09: ffffffff8a881240 R10: ffffffff8a509c30 R11: 0000000000000000 R12: ffffffff8a54aee0 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8823b400 __lock_acquire+0xf4/0x4690 /kernel/locking/lockdep.c:3762 lock_acquire+0x190/0x410 /kernel/locking/lockdep.c:4413 __raw_spin_lock_bh /./include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x33/0x50 /kernel/locking/spinlock.c:175 spin_lock_bh /./include/linux/spinlock.h:343 [inline] lock_sock_nested+0x41/0x120 /net/core/sock.c:2917 lock_sock /./include/net/sock.h:1522 [inline] do_ipv6_setsockopt.isra.0+0x27a/0x4120 /net/ipv6/ipv6_sockglue.c:165 ipv6_setsockopt+0xf6/0x170 /net/ipv6/ipv6_sockglue.c:944 udpv6_setsockopt+0x68/0xb0 /net/ipv6/udp.c:1558 sock_common_setsockopt+0x94/0xd0 /net/core/sock.c:3130 __sys_setsockopt+0x261/0x4c0 /net/socket.c:2080 __do_sys_setsockopt /net/socket.c:2096 [inline] __se_sys_setsockopt /net/socket.c:2093 [inline] __x64_sys_setsockopt+0xbe/0x150 /net/socket.c:2093 do_syscall_64+0xfd/0x6a0 /arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459819 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff2258d6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459819 RDX: 0000000000000020 RSI: 0000000000000029 RDI: 0000000000000004 RBP: 000000000075c070 R08: 0000000000000020 R09: 0000000000000000 R10: 0000000020000140 R11: 0000000000000246 R12: 00007ff2258d76d4 R13: 00000000004cece0 R14: 00000000004dd630 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..