audit: type=1804 audit(1571633215.307:69): pid=9332 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir179470882/syzkaller.horben/59/bus" dev="sda1" ino=16745 res=1
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: work_struct hint: tcindex_destroy_rexts_work+0x0/0x30 net/sched/cls_tcindex.c:142
WARNING: CPU: 1 PID: 7 at lib/debugobjects.c:325 debug_print_object+0x168/0x250 lib/debugobjects.c:325
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.80 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: tc_filter_workqueue tcindex_destroy_work
audit: type=1804 audit(1571633215.307:70): pid=9332 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=ToMToU comm="syz-executor.4" name="/root/syzkaller-testdir179470882/syzkaller.horben/59/bus" dev="sda1" ino=16745 res=1
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x26a/0x50e kernel/panic.c:186
kobject: 'veth7' (0000000053f1120c): kobject_cleanup, parent           (null)
kobject: 'veth7' (0000000053f1120c): calling ktype release
 __warn.cold+0x20/0x53 kernel/panic.c:541
kobject: 'veth7': free name
 report_bug+0x263/0x2b0 lib/bug.c:186
kobject: 'veth6' (000000003c89aa0c): kobject_cleanup, parent           (null)
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
kobject: 'veth6' (000000003c89aa0c): calling ktype release
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037
kobject: 'veth6': free name
RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:325
Code: dd 60 4b 82 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 60 4b 82 87 48 c7 c7 a0 40 82 87 e8 16 27 1a fe <0f> 0b 83 05 fb f4 18 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3
RSP: 0018:ffff8880aa21fc18 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed1015443f75
RBP: ffff8880aa21fc58 R08: ffff8880aa2061c0 R09: ffffed1015d23ee3
R10: ffffed1015d23ee2 R11: ffff8880ae91f717 R12: 0000000000000001
R13: ffffffff8876c960 R14: ffffffff81447db0 R15: ffff88804c0c9fa8
 __debug_check_no_obj_freed lib/debugobjects.c:785 [inline]
 debug_check_no_obj_freed+0x29f/0x464 lib/debugobjects.c:817
 kfree+0xbd/0x220 mm/slab.c:3821
 tcindex_destroy_work+0x33/0x80 net/sched/cls_tcindex.c:230
 process_one_work+0x989/0x1750 kernel/workqueue.c:2153
 worker_thread+0x98/0xe40 kernel/workqueue.c:2296
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

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