kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3975 Comm: udevd Not tainted 5.0.0+ #118 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_accessed kernel/locking/lockdep.c:968 [inline] RIP: 0010:__bfs kernel/locking/lockdep.c:1035 [inline] RIP: 0010:__bfs+0x18a/0x5a0 kernel/locking/lockdep.c:989 Code: 8b 3f 4d 39 fd 0f 84 77 01 00 00 49 8d 7f 10 4c 89 f8 4c 8b 0d 57 0c fb 08 48 89 f9 48 2d e0 77 31 8a 48 c1 e9 03 48 c1 f8 06 <42> 80 3c 31 00 0f 85 db 02 00 00 49 8b 77 10 4c 8d 46 2c 4c 89 c1 RSP: 0018:ffff8880ae9077e8 EFLAGS: 00010003 RAX: 0000000001d73a20 RBX: ffff8880ae9078b0 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 1ffffffff14ab75c RDI: 0000000000000010 RBP: ffff8880ae907850 R08: 0000000000000001 R09: 0000000000002cbc R10: ffffed1015d25bcf R11: 0000000000000000 R12: 0000000000000006 R13: ffffffff8a2800d0 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f1e1b4307a0(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffffbaa9e3c CR3: 0000000091435000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __bfs_forwards kernel/locking/lockdep.c:1063 [inline] find_usage_forwards kernel/locking/lockdep.c:1363 [inline] check_usage_forwards+0x119/0x340 kernel/locking/lockdep.c:2575 mark_lock_irq kernel/locking/lockdep.c:2690 [inline] mark_lock+0x427/0x1380 kernel/locking/lockdep.c:3062 mark_irqflags kernel/locking/lockdep.c:2940 [inline] __lock_acquire+0x128f/0x4700 kernel/locking/lockdep.c:3295 kobject: 'loop2' (000000007ca66692): kobject_uevent_env lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 kobject: 'loop2' (000000007ca66692): fill_kobj_path: path = '/devices/virtual/block/loop2' __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] __queue_work+0x9ce/0x1180 kernel/workqueue.c:1434 queue_work_on+0x192/0x200 kernel/workqueue.c:1506 queue_work include/linux/workqueue.h:512 [inline] rxrpc_peer_keepalive_timeout net/rxrpc/net_ns.c:41 [inline] rxrpc_peer_keepalive_timeout+0x97/0xd0 net/rxrpc/net_ns.c:35 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 __do_softirq+0x266/0x95a kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:rcu_read_lock_held+0x71/0xd0 kernel/rcu/update.c:275 Code: ff df 48 89 c1 83 e0 07 48 c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 04 84 d2 75 54 8b 05 e0 e8 ff 07 85 c0 74 09 e8 2f f0 ff ff <85> c0 75 07 b8 01 00 00 00 5d c3 e8 8f dd 00 00 84 c0 74 09 e8 36 RSP: 0018:ffff888091517680 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffff8880a6e082f0 RCX: 1ffffffff12b9f0b RDX: 0000000000000000 RSI: ffffffff81b6c7b6 RDI: ffff88809150893c RBP: ffff888091517680 R08: ffff8880915080c0 R09: ffffed1015d25bd0 R10: ffffed1015d25bcf R11: ffff8880ae92de7b R12: 0000000000000000 R13: 00000000dbe648f8 R14: 0000000000000000 R15: ffff8880915177c0 hlist_bl_first_rcu include/linux/rculist_bl.h:24 [inline] __d_lookup+0x48b/0x760 fs/dcache.c:2295 lookup_fast+0x41f/0x11b0 fs/namei.c:1617 kobject: 'loop0' (00000000f0d15bbc): kobject_uevent_env walk_component+0xef/0x2000 fs/namei.c:1806 kobject: 'loop0' (00000000f0d15bbc): fill_kobj_path: path = '/devices/virtual/block/loop0' link_path_walk.part.0+0x980/0x1340 fs/namei.c:2141 kobject: 'loop3' (00000000e6946817): kobject_uevent_env kobject: 'loop3' (00000000e6946817): fill_kobj_path: path = '/devices/virtual/block/loop3' link_path_walk fs/namei.c:2269 [inline] path_lookupat.isra.0+0xe3/0x8d0 fs/namei.c:2317 xt_time: unknown flags 0x30 filename_lookup+0x1b0/0x410 fs/namei.c:2348 kobject: 'loop3' (00000000e6946817): kobject_uevent_env user_path_at_empty+0x43/0x50 fs/namei.c:2608 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0x129/0x200 fs/stat.c:185 kobject: 'loop3' (00000000e6946817): fill_kobj_path: path = '/devices/virtual/block/loop3' vfs_stat include/linux/fs.h:3177 [inline] __do_sys_newstat+0xa4/0x130 fs/stat.c:339 kobject: 'loop5' (000000003204e278): kobject_uevent_env kobject: 'loop5' (000000003204e278): fill_kobj_path: path = '/devices/virtual/block/loop5' __se_sys_newstat fs/stat.c:335 [inline] __x64_sys_newstat+0x54/0x80 fs/stat.c:335 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 kobject: 'loop5' (000000003204e278): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f1e1ab37c65 Code: 00 00 00 e8 5d 01 00 00 48 83 c4 18 c3 90 90 90 90 90 90 90 90 83 ff 01 48 89 f0 77 18 48 89 c7 48 89 d6 b8 04 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 17 f3 c3 90 48 8b 05 a1 51 2b 00 64 c7 00 16 RSP: 002b:00007ffffbaabd58 EFLAGS: 00000246 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 00000000016a2250 RCX: 00007f1e1ab37c65 RDX: 00007ffffbaabd70 RSI: 00007ffffbaabd70 RDI: 00007ffffbaac200 RBP: 00000000016b4480 R08: 000000000041f4f1 R09: 00007f1e1ab8e7d0 kobject: 'loop5' (000000003204e278): fill_kobj_path: path = '/devices/virtual/block/loop5' R10: 7269762f73656369 R11: 0000000000000246 R12: 0000000000000004 R13: 00000000016b4487 R14: 00000000016a2250 R15: 000000000000000b Modules linked in: ---[ end trace f3e9d41615aba599 ]--- RIP: 0010:lock_accessed kernel/locking/lockdep.c:968 [inline] RIP: 0010:__bfs kernel/locking/lockdep.c:1035 [inline] RIP: 0010:__bfs+0x18a/0x5a0 kernel/locking/lockdep.c:989 Code: 8b 3f 4d 39 fd 0f 84 77 01 00 00 49 8d 7f 10 4c 89 f8 4c 8b 0d 57 0c fb 08 48 89 f9 48 2d e0 77 31 8a 48 c1 e9 03 48 c1 f8 06 <42> 80 3c 31 00 0f 85 db 02 00 00 49 8b 77 10 4c 8d 46 2c 4c 89 c1 xt_time: unknown flags 0x30 RSP: 0018:ffff8880ae9077e8 EFLAGS: 00010003 RAX: 0000000001d73a20 RBX: ffff8880ae9078b0 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 1ffffffff14ab75c RDI: 0000000000000010 RBP: ffff8880ae907850 R08: 0000000000000001 R09: 0000000000002cbc R10: ffffed1015d25bcf R11: 0000000000000000 R12: 0000000000000006 R13: ffffffff8a2800d0 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f1e1b4307a0(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffffbaa9e3c CR3: 0000000091435000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400