------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: xprt_init_autodisconnect+0x0/0x170 net/sunrpc/xprt.c:97 WARNING: CPU: 0 PID: 8213 at lib/debugobjects.c:325 debug_print_object+0x16a/0x250 lib/debugobjects.c:325 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 8213 Comm: syz-executor.3 Not tainted 5.1.0-rc5+ #74 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+0x2cb/0x65c kernel/panic.c:214 __warn.cold+0x20/0x45 kernel/panic.c:571 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:973 RIP: 0010:debug_print_object+0x16a/0x250 lib/debugobjects.c:325 Code: dd 00 a2 a1 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 00 a2 a1 87 48 c7 c7 a0 97 a1 87 e8 14 d3 11 fe <0f> 0b 83 05 d1 fc 2c 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffff8880ae807d08 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff815afcb6 RDI: ffffed1015d00f93 RBP: ffff8880ae807d48 R08: ffff888054c82240 R09: ffffed1015d03ef1 R10: ffffed1015d03ef0 R11: ffff8880ae81f787 R12: 0000000000000001 R13: ffffffff889af640 R14: ffffffff816064e0 R15: ffff8880880cf180 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline] debug_check_no_obj_freed+0x29f/0x464 lib/debugobjects.c:817 kfree+0xbd/0x230 mm/slab.c:3822 __rcu_reclaim kernel/rcu/rcu.h:220 [inline] rcu_do_batch kernel/rcu/tree.c:2475 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2788 [inline] rcu_core+0xa38/0x13a0 kernel/rcu/tree.c:2769 __do_softirq+0x266/0x95a kernel/softirq.c:293 invoke_softirq kernel/softirq.c:374 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:414 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:slab_alloc mm/slab.c:3392 [inline] RIP: 0010:kmem_cache_alloc+0x5a0/0x6f0 mm/slab.c:3556 Code: 07 4d 8b 7c c7 10 e8 2f 27 89 01 e9 48 fc ff ff 41 be ff ff ff ff e9 1e ff ff ff 0f 0b e9 68 fc ff ff 0f 0b 0f 0b 49 63 55 74 <31> f6 4c 89 ff e8 e6 49 66 05 e9 58 fb ff ff 48 8b 50 48 4c 89 e7 RSP: 0018:ffff8881ed61fa28 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: 0000000000000dc0 RCX: 1ffff1100a99055c RDX: 00000000000001c8 RSI: ffff888054c82ac0 RDI: 0000000000000286 RBP: ffff8881ed61fa90 R08: ffff888054c82240 R09: ffff888054c82ae0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88812c2ccc40 R13: ffff88805cfb2340 R14: 0000000000000dc0 R15: ffff88806b2d2ac0 kmem_cache_zalloc include/linux/slab.h:732 [inline] __alloc_file+0x27/0x300 fs/file_table.c:100 alloc_empty_file+0x72/0x170 fs/file_table.c:150 alloc_file+0x5e/0x4d0 fs/file_table.c:192 alloc_file_pseudo+0x189/0x280 fs/file_table.c:231 __shmem_file_setup.part.0+0x108/0x2b0 mm/shmem.c:4000 __shmem_file_setup mm/shmem.c:3983 [inline] shmem_kernel_file_setup+0x69/0x90 mm/shmem.c:4019 newseg+0xa6b/0xe90 ipc/shm.c:663 ipcget_new ipc/util.c:315 [inline] ipcget+0xfe/0xd60 ipc/util.c:614 ksys_shmget ipc/shm.c:742 [inline] __do_sys_shmget ipc/shm.c:747 [inline] __se_sys_shmget ipc/shm.c:745 [inline] __x64_sys_shmget+0x146/0x1d0 ipc/shm.c:745 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458c29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f24d1108c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001d RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458c29 RDX: 00000000000000a2 RSI: 0000000000002000 RDI: 0000000000000000 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020ffd000 R11: 0000000000000246 R12: 00007f24d11096d4 R13: 00000000004c715b R14: 00000000004dcdb8 R15: 00000000ffffffff ======================================================