WARNING: ODEBUG bug in process_one

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WARNING: ODEBUG bug in process_one_work	0 (1)	2020/01/31 18:15

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2020/01/31 18:15

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING: ODEBUG bug in process_one_work (2) kernel	-1	syz	error	error	1	2162d	2158d	0/29	auto-obsoleted due to no activity on 2022/09/22 10:05

------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: xprt_init_autodisconnect+0x0/0x160 net/sunrpc/xprt.c:1311 WARNING: CPU: 0 PID: 3067 at lib/debugobjects.c:485 debug_print_object+0x168/0x250 lib/debugobjects.c:485 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3067 Comm: kworker/0:57 Not tainted 5.5.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events kfree_rcu_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:176 [inline] fixup_bug arch/x86/kernel/traps.c:171 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:269 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:288 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:485 Code: dd c0 74 91 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd c0 74 91 88 48 c7 c7 20 6a 91 88 e8 17 ed a3 fd <0f> 0b 83 05 93 05 02 07 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffffc90008c1fbe0 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815e9806 RDI: fffff52001183f6e RBP: ffffc90008c1fc20 R08: ffff88809e54c000 R09: ffffed1015d045c9 R10: ffffed1015d045c8 R11: ffff8880ae822e43 R12: 0000000000000001 R13: ffffffff89bb6760 R14: ffffffff816474a0 R15: ffff8880a839b9a0 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline] debug_check_no_obj_freed+0x2d6/0x441 lib/debugobjects.c:998 kfree+0xf8/0x2c0 mm/slab.c:3756 kfree_rcu_work+0x145/0x230 kernel/rcu/tree.c:2761 process_one_work+0xa05/0x17a0 kernel/workqueue.c:2264 worker_thread+0x98/0xe40 kernel/workqueue.c:2410 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..