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WARNING: CPU: 0 PID: 31208 at fs/inode.c:343 inc_nlink.cold+0x11/0x18 fs/inode.c:343
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 31208 Comm: syz-executor.2 Not tainted 4.19.123-syzkaller #0
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+0x188/0x20d lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x46 kernel/panic.c:541
 report_bug+0x262/0x2a0 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+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:inc_nlink.cold+0x11/0x18 fs/inode.c:343
Code: aa b9 ff 44 89 e0 5b 5d 41 5c c3 e8 80 90 ef ff eb c3 e8 89 90 ef ff eb 8e e8 82 aa b9 ff 48 c7 c7 00 d0 94 87 e8 9f c9 a4 ff <0f> 0b e9 28 86 ff ff e8 6a aa b9 ff 48 8d 7b 40 b8 ff ff 37 00 48
RSP: 0018:ffff8880a7b67d88 EFLAGS: 00010282
RAX: 0000000000000024 RBX: ffff888061ec71c0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8152fd51 RDI: ffffed1014f6cfa3
RBP: 0000000000000000 R08: 0000000000000024 R09: ffffed1015cc5079
R10: ffffed1015cc5078 R11: ffff8880ae6283c7 R12: ffff888061ec7208
R13: ffff888082a348c0 R14: ffff888082a34918 R15: 0000000000000000
 inode_inc_link_count include/linux/fs.h:2098 [inline]
 minix_mkdir+0x71/0x1b0 fs/minix/namei.c:117
 vfs_mkdir+0x419/0x690 fs/namei.c:3819
 do_mkdirat+0x21e/0x280 fs/namei.c:3842
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45ca29
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb6e6719c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00000000004f5b40 RCX: 000000000045ca29
RDX: 0000000000000000 RSI: 0000000000000025 RDI: 00000000200002c0
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000734 R14: 00000000004c2500 R15: 00007fb6e671a6d4
Kernel Offset: disabled
Rebooting in 86400 seconds..