device bridge562 entered promiscuous mode watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.1:28778] Modules linked in: irq event stamp: 3500125 hardirqs last enabled at (3500124): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3500125): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (19560): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (19563): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (19563): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 28778 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:192 Code: c0 98 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 31 48 83 3d 01 31 d8 01 00 74 25 fb 66 0f 1f 44 00 00 01 00 00 00 e8 26 1b 28 f9 65 8b 05 9f 8d e8 77 85 c0 74 02 5d RSP: 0018:ffff8880ba007de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3053 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88804524ea04 RBP: ffff8880ba022b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff868939f0 R13: ffff8880ba022b40 R14: ffff8880ba007e78 R15: 0000000000000000 FS: 00007fd7853cf700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31f28000 CR3: 0000000012f6c000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: expire_timers+0x238/0x4e0 kernel/time/timer.c:1374 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_release+0x429/0x8b0 kernel/locking/lockdep.c:3930 Code: 84 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 95 03 00 00 48 83 3d 7b 34 a6 08 00 0f 84 cc 01 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 49 c7 04 04 00 00 00 RSP: 0018:ffff88822a427cc0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: ffff88804524e180 RCX: 1ffff11008a49d41 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: 0000000000000000 R08: ffff8880ba027720 R09: 0000000000000000 R10: ffff88822a427b60 R11: 0000000000000000 R12: 1ffff11045484f9b R13: 0000000000000000 R14: ffff88804524e180 R15: 0000000000000001 rcu_lock_release include/linux/rcupdate.h:247 [inline] rcu_read_unlock_sched include/linux/rcupdate.h:762 [inline] __fd_install+0x1d1/0x610 fs/file.c:608 __do_sys_perf_event_open kernel/events/core.c:10947 [inline] __se_sys_perf_event_open+0x1072/0x2720 kernel/events/core.c:10549 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fd786e5d0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd7853cf168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fd786f7cf80 RCX: 00007fd786e5d0c9 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 000000002001d000 RBP: 00007fd786eb8ae9 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe1c65f52f R14: 00007fd7853cf300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8129 Comm: syz-fuzzer Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:rcu_read_unlock_sched_notrace include/linux/rcupdate.h:771 [inline] RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline] RIP: 0010:lock_release+0x5db/0x8b0 kernel/locking/lockdep.c:3926 Code: ff 05 a9 8f b6 7e 48 8b 05 9a 8b c3 09 e8 3d 4e 05 00 85 c0 74 0d 80 3d 74 3b c3 09 00 0f 84 60 01 00 00 65 ff 0d 85 8f b6 7e <0f> 85 97 fb ff ff e8 5c ed b4 ff e9 8d fb ff ff 0f 0b 0f 0b 0f 0b RSP: 0000:ffff8880ba107c38 EFLAGS: 00000002 RAX: 0000000000000000 RBX: ffff8880a19f6f28 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffff8880965a8e84 RBP: ffff888093c205b8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 1ffff11017420f8a R13: ffffffff86893a6b R14: 0000000000000000 R15: dffffc0000000000 FS: 000000c02c83c090(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c010b36ff8 CR3: 000000009d159000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline] _raw_spin_unlock+0x17/0x40 kernel/locking/spinlock.c:176 spin_unlock include/linux/spinlock.h:369 [inline] mrp_join_timer+0x7b/0xc0 net/802/mrp.c:609 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0033:0x41e4da Code: 48 be 00 00 00 00 00 80 00 00 48 01 c6 48 c1 ee 1a 48 81 fe 00 00 40 00 0f 83 c8 02 00 00 48 8b 14 f2 48 85 d2 74 25 49 89 c0 <48> c1 e8 05 48 25 ff ff 1f 00 4c 8d 0c 02 4d 89 c2 49 c1 e8 03 49 RSP: 002b:000000c0005d3e80 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 000000c010b2fb00 RBX: 000000c000041e98 RCX: 000000c010b2fb00 RDX: 00007fd303cca000 RSI: 0000000000203004 RDI: 0000000000c0d748 RBP: 000000c0005d3f08 R08: 000000c010b2fb00 R09: 000000c01d3ea800 R10: 0000000000000071 R11: 0000000000000070 R12: 000000c0005d3f00 R13: 0000000000000032 R14: 000000c0209c7ba0 R15: 0000000000000000