------------[ cut here ]------------ WARNING: CPU: 1 PID: 18562 at kernel/rcu/tree.c:1058 rcu_irq_enter+0x15/0x20 kernel/rcu/tree.c:1058 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 18562 Comm: syz-executor.3 Not tainted 5.9.0-rc1-syzkaller #0 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+0x18f/0x20d lib/dump_stack.c:118 panic+0x31e/0x797 kernel/panic.c:231 __warn.cold+0x20/0x4f kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:rcu_irq_enter+0x15/0x20 kernel/rcu/tree.c:1058 Code: e0 06 8a e8 bd 8c b2 fb e9 6a ff ff ff 0f 1f 84 00 00 00 00 00 8b 05 26 f5 34 03 85 c0 74 0d 65 8b 05 5b 97 dd 77 85 c0 74 02 <0f> 0b e9 04 ff ff ff 0f 1f 40 00 55 53 48 c7 c3 40 6c 03 00 e8 52 RSP: 0018:ffffc90000da8cb8 EFLAGS: 00010002 RAX: 0000000000000001 RBX: 0000000000000082 RCX: ffffffff817c45c7 RDX: ffff88804aad4200 RSI: ffffffff8163f5f1 RDI: 0000000000000005 RBP: ffffffff8d64a610 R08: 0000000000000000 R09: ffffffff8b59380f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000082 R13: ffffffff88270ff6 R14: 0000000000000001 R15: ffffffff8a068000 rcu_irq_enter_irqson+0x76/0x140 kernel/rcu/tree.c:1073 trace_irq_disable_rcuidle include/trace/events/preemptirq.h:36 [inline] trace_irq_disable_rcuidle include/trace/events/preemptirq.h:36 [inline] trace_hardirqs_off kernel/trace/trace_preemptirq.c:82 [inline] trace_hardirqs_off+0x114/0x210 kernel/trace/trace_preemptirq.c:74 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] _raw_spin_lock_irqsave+0x66/0xc0 kernel/locking/spinlock.c:159 debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:636 debug_rcu_head_queue kernel/rcu/rcu.h:176 [inline] __call_rcu kernel/rcu/tree.c:2880 [inline] call_rcu+0x2c/0x800 kernel/rcu/tree.c:2968 free_zapped_rcu+0xc2/0x2f0 kernel/locking/lockdep.c:5469 rcu_do_batch kernel/rcu/tree.c:2428 [inline] rcu_core+0x5c7/0x1190 kernel/rcu/tree.c:2656 __do_softirq+0x2ed/0xab4 kernel/softirq.c:298 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x9d/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x1f3/0x230 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] RIP: 0010:kmem_cache_free.part.0+0x8c/0x1f0 mm/slab.c:3694 Code: e8 09 26 00 00 84 c0 74 76 41 f7 c4 00 02 00 00 74 4e e8 97 ca c4 ff 48 83 3d 77 e8 44 08 00 0f 84 2f 01 00 00 4c 89 e7 57 9d <0f> 1f 44 00 00 4c 8b 64 24 20 0f 1f 44 00 00 65 8b 05 ce 11 4a 7e RSP: 0018:ffffc90004d97e20 EFLAGS: 00000282 RAX: 000000000000115d RBX: ffff88809607dc40 RCX: 1ffffffff16b1f79 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282 RBP: ffff8880aa221e00 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000282 R13: ffffffff837cba14 R14: ffff888047f4b0c0 R15: ffff888040161d78 security_file_free+0xa4/0xd0 security/security.c:1474 file_free fs/file_table.c:55 [inline] __fput+0x3d7/0x920 fs/file_table.c:299 task_work_run+0xdd/0x190 kernel/task_work.c:141 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:140 [inline] exit_to_user_mode_prepare+0x195/0x1c0 kernel/entry/common.c:167 syscall_exit_to_user_mode+0x59/0x2b0 kernel/entry/common.c:242 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x416f41 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffc9c755340 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416f41 RDX: 0000000000000000 RSI: 0000000000000d92 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00000000e1a74d92 R09: 00000000e1a74d96 R10: 00007ffc9c755430 R11: 0000000000000293 R12: 00000000011902b8 R13: 00000000002e59dc R14: ffffffffffffffff R15: 000000000118cf4c Kernel Offset: disabled Rebooting in 86400 seconds..