------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: xprt_init_autodisconnect+0x0/0x170 net/sunrpc/xprt.c:96 WARNING: CPU: 1 PID: 12503 at lib/debugobjects.c:325 debug_print_object+0x16a/0x250 lib/debugobjects.c:325 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 12503 Comm: syz-executor.2 Not tainted 5.0.0-rc7+ #81 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:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:debug_print_object+0x16a/0x250 lib/debugobjects.c:325 Code: dd 80 50 a2 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 80 50 a2 87 48 c7 c7 20 46 a2 87 e8 34 1d 18 fe <0f> 0b 83 05 41 9b 31 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffff8880ae907d08 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff815a92c6 RDI: ffffed1015d20f93 RBP: ffff8880ae907d48 R08: ffff88809116c300 R09: ffffed1015d23ef9 R10: ffffed1015d23ef8 R11: ffff8880ae91f7c7 R12: 0000000000000001 R13: ffffffff889adde0 R14: ffffffff815fc2a0 R15: ffff88805e9211c8 __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:3805 __rcu_reclaim kernel/rcu/rcu.h:233 [inline] rcu_do_batch kernel/rcu/tree.c:2452 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline] rcu_process_callbacks+0xa4b/0x1390 kernel/rcu/tree.c:2754 __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:__sanitizer_cov_trace_const_cmp8+0xf/0x20 kernel/kcov.c:195 Code: bf 05 00 00 00 48 89 e5 48 8b 4d 08 e8 ba fe ff ff 5d c3 0f 1f 84 00 00 00 00 00 55 48 89 f2 48 89 fe bf 07 00 00 00 48 89 e5 <48> 8b 4d 08 e8 98 fe ff ff 5d c3 66 0f 1f 44 00 00 55 48 89 fa 48 RSP: 0018:ffff88808c98ff10 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: ffff88809116c300 RBX: 00000000000000e4 RCX: ffffffff8100a043 RDX: 00000000000000e4 RSI: 0000000000000223 RDI: 0000000000000007 RBP: ffff88808c98ff10 R08: ffff88809116c300 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808c98ff58 R13: ffffffff88928300 R14: 0000000000000000 R15: 0000000000000000 do_syscall_64+0xb5/0x610 arch/x86/entry/common.c:288 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45ac8a Code: 25 18 00 00 00 00 74 01 f0 48 0f b1 3d df ba 5f 00 48 39 c2 75 da f3 c3 0f 1f 84 00 00 00 00 00 48 63 ff b8 e4 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 48 c7 c2 d4 ff ff ff f7 RSP: 002b:0000000000a4fbc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4 RAX: ffffffffffffffda RBX: 000000000004d602 RCX: 000000000045ac8a RDX: 0000000000000000 RSI: 0000000000a4fbd0 RDI: 0000000000000001 RBP: 000000000073c900 R08: 00000000d438a52a R09: 00000000d438a52e R10: 0000000000a4fcc0 R11: 0000000000000246 R12: 000000000073c900 R13: 000000000004d317 R14: 00000000000003e8 R15: 000000000073bfac ======================================================