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WARNING: CPU: 1 PID: 29951 at fs/proc/generic.c:178 __xlate_proc_name fs/proc/generic.c:178 [inline]
WARNING: CPU: 1 PID: 29951 at fs/proc/generic.c:178 xlate_proc_name fs/proc/generic.c:194 [inline]
WARNING: CPU: 1 PID: 29951 at fs/proc/generic.c:178 __proc_create+0x25a/0xb60 fs/proc/generic.c:387
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 29951 Comm: kworker/1:0 Not tainted 5.5.0-rc6-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+0x1fb/0x318 lib/dump_stack.c:118
 panic+0x264/0x7a9 kernel/panic.c:221
 __warn+0x209/0x210 kernel/panic.c:582
 report_bug+0x1b6/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0xda/0x440 arch/x86/kernel/traps.c:267
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:286
 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 fs/proc/generic.c:194 [inline]
RIP: 0010:__proc_create+0x25a/0xb60 fs/proc/generic.c:387
Code: 07 00 00 49 89 c6 e8 45 60 94 ff e9 56 fe ff ff e8 3b 60 94 ff 48 8b 75 b8 45 31 ed 48 c7 c7 79 4c e1 88 31 c0 e8 46 6c 66 ff <0f> 0b 48 c7 c7 88 42 11 89 e8 88 ca 1a 06 e9 bc 00 00 00 e8 0e 60
RSP: 0018:ffffc900080a7a90 EFLAGS: 00010246
RAX: 1ec5f47c69511a00 RBX: 0000000000000008 RCX: ffff888095ec4480
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900080a7b00 R08: ffffffff815f9d64 R09: fffffbfff13cd11e
R10: fffffbfff13cd11e R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000013 R15: 0000000000000000
 proc_mkdir_data+0x8b/0x150 fs/proc/generic.c:473
 proc_net_mkdir include/linux/proc_fs.h:139 [inline]
 afs_proc_cell_setup+0x9d/0x150 fs/afs/proc.c:610
 afs_activate_cell fs/afs/cell.c:591 [inline]
 afs_manage_cell+0x750/0x1500 fs/afs/cell.c:673
 process_one_work+0x7f5/0x10d0 kernel/workqueue.c:2264
 worker_thread+0xbbc/0x1630 kernel/workqueue.c:2410
 kthread+0x332/0x350 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..