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: 0 PID: 25139 Comm: syz-executor4 Not tainted 5.0.0-rc3+ #16 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+0x2ce/0x7a0 kernel/locking/lockdep.c:989 Code: 49 01 00 00 49 8d 7f 10 4c 89 f8 4c 8b 1d 7a e0 ee 09 48 89 f9 48 2d 20 57 32 8b 44 8b 15 ca de 61 09 48 c1 e9 03 48 c1 f8 06 <42> 80 3c 21 00 0f 85 2c 03 00 00 49 8b 77 10 4c 8d 46 2c 4c 89 c1 RSP: 0018:ffff8880ae607110 EFLAGS: 00010007 RAX: 0000000001d336a3 RBX: ffffed1015cc0e3b RCX: 0000000000000002 RDX: 1ffff11015cc0e37 RSI: 0000000000000001 RDI: 0000000000000010 RBP: ffff8880ae607240 R08: 0000000000000001 R09: 1ffff11015cc0e3b R10: 000000000001b66a R11: 0000000000002f7e R12: dffffc0000000000 R13: ffffffff8b1abad0 R14: ffff8880ae607218 R15: 0000000000000000 FS: 00007fd065ae5700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd065aa2db8 CR3: 0000000009871000 CR4: 00000000001406f0 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+0x164/0x3e0 kernel/locking/lockdep.c:2575 mark_lock_irq kernel/locking/lockdep.c:2690 [inline] mark_lock+0x519/0x1cd0 kernel/locking/lockdep.c:3062 mark_irqflags kernel/locking/lockdep.c:2940 [inline] __lock_acquire+0x139c/0x4a30 kernel/locking/lockdep.c:3295 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841 __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+0xbfc/0x1450 kernel/workqueue.c:1414 delayed_work_timer_fn+0x5d/0x90 kernel/workqueue.c:1500 call_timer_fn+0x254/0x900 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1358 [inline] __run_timers+0x4a2/0xd50 kernel/time/timer.c:1681 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 __do_softirq+0x30b/0xb11 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+0x1b7/0x760 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:lock_acquire+0x259/0x570 kernel/locking/lockdep.c:3844 Code: 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 64 02 00 00 48 83 3d 66 31 2e 08 00 0f 84 d0 01 00 00 48 8b bd 48 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 03 85 40 ff ff ff RSP: 0018:ffff888090656cb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff132501e RBX: ffff88806084a180 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000282 RBP: ffff888090656d88 R08: 0000000000000001 R09: ffff88806084aa48 R10: ffff88806084aa28 R11: 0000000000000001 R12: ffffffff899a3f40 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 rcu_lock_acquire include/linux/rcupdate.h:223 [inline] rcu_read_lock+0x29/0x70 include/linux/rcupdate.h:607 lock_page_memcg+0x75/0x2e0 mm/memcontrol.c:1885 page_remove_file_rmap mm/rmap.c:1217 [inline] page_remove_rmap+0x7e8/0x1990 mm/rmap.c:1302 zap_pte_range mm/memory.c:1090 [inline] zap_pmd_range mm/memory.c:1192 [inline] zap_pud_range mm/memory.c:1221 [inline] zap_p4d_range mm/memory.c:1242 [inline] unmap_page_range+0xf0f/0x25a0 mm/memory.c:1263 unmap_single_vma+0x19d/0x300 mm/memory.c:1308 unmap_vmas+0x17c/0x310 mm/memory.c:1339 exit_mmap+0x2d4/0x5d0 mm/mmap.c:3140 __mmput kernel/fork.c:1047 [inline] mmput+0x240/0x640 kernel/fork.c:1068 exit_mm kernel/exit.c:545 [inline] do_exit+0x9e2/0x26e0 kernel/exit.c:854 do_group_exit+0x177/0x430 kernel/exit.c:971 get_signal+0x8b4/0x19b0 kernel/signal.c:2517 do_signal+0x91/0x1ea0 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x2f7/0x3b0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x696/0x800 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: Bad RIP value. RSP: 002b:00007fd065ae4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: 0000000020000000 RBX: 0000000000000006 RCX: 0000000000458099 RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000000020000000 RBP: 000000000073c040 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000008031 R11: 0000000000000246 R12: 00007fd065ae56d4 R13: 00000000004c3d82 R14: 00000000004d6ce8 R15: 00000000ffffffff Modules linked in: ---[ end trace d752be3455408c60 ]--- RIP: 0010:lock_accessed kernel/locking/lockdep.c:968 [inline] RIP: 0010:__bfs kernel/locking/lockdep.c:1035 [inline] RIP: 0010:__bfs+0x2ce/0x7a0 kernel/locking/lockdep.c:989 Code: 49 01 00 00 49 8d 7f 10 4c 89 f8 4c 8b 1d 7a e0 ee 09 48 89 f9 48 2d 20 57 32 8b 44 8b 15 ca de 61 09 48 c1 e9 03 48 c1 f8 06 <42> 80 3c 21 00 0f 85 2c 03 00 00 49 8b 77 10 4c 8d 46 2c 4c 89 c1 RSP: 0018:ffff8880ae607110 EFLAGS: 00010007 RAX: 0000000001d336a3 RBX: ffffed1015cc0e3b RCX: 0000000000000002 RDX: 1ffff11015cc0e37 RSI: 0000000000000001 RDI: 0000000000000010 RBP: ffff8880ae607240 R08: 0000000000000001 R09: 1ffff11015cc0e3b R10: 000000000001b66a R11: 0000000000002f7e R12: dffffc0000000000 R13: ffffffff8b1abad0 R14: ffff8880ae607218 R15: 0000000000000000 FS: 00007fd065ae5700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045806f CR3: 0000000009871000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400