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WARNING: CPU: 0 PID: 3250 at fs/proc/generic.c:178 __xlate_proc_name fs/proc/generic.c:178 [inline]
WARNING: CPU: 0 PID: 3250 at fs/proc/generic.c:178 __xlate_proc_name+0xe7/0x110 fs/proc/generic.c:161
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 3250 Comm: kworker/0:9 Not tainted 5.5.0-rc6-next-20200116-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: afs afs_manage_cell
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:__xlate_proc_name fs/proc/generic.c:178 [inline]
RIP: 0010:__xlate_proc_name+0xe7/0x110 fs/proc/generic.c:161
Code: af 1a 8f ff 44 89 e0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 98 1a 8f ff 4c 89 fe 48 c7 c7 40 4f 59 88 e8 78 6b 5f ff <0f> 0b 41 bc fe ff ff ff eb cb 4c 89 f7 e8 07 b2 cd ff e9 3d ff ff
RSP: 0018:ffffc90008c379c0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88808bbea53a RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815eb7c6 RDI: fffff52001186f2a
RBP: ffffc90008c379f0 R08: ffff88809e2d4040 R09: ffffed1015d06659
R10: ffffed1015d06658 R11: ffff8880ae8332c7 R12: 0000000000000000
R13: ffff88808bbea539 R14: ffffc90008c37af8 R15: ffff88808bbea539
 xlate_proc_name fs/proc/generic.c:194 [inline]
 __proc_create+0xac/0x860 fs/proc/generic.c:387
 proc_mkdir_data+0xbc/0x1b0 fs/proc/generic.c:473
 proc_net_mkdir include/linux/proc_fs.h:154 [inline]
 afs_proc_cell_setup+0x95/0x190 fs/afs/proc.c:610
 afs_activate_cell fs/afs/cell.c:591 [inline]
 afs_manage_cell+0x586/0x1400 fs/afs/cell.c:673
 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..