reiserfs: enabling write barrier flush mode
------------[ cut here ]------------
WARNING: CPU: 0 PID: 18351 at fs/inode.c:979 unlock_new_inode.cold+0x11/0x3f fs/inode.c:979
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 18351 Comm: syz-executor.2 Not tainted 4.19.147-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+0x22c/0x33e lib/dump_stack.c:118
 panic+0x2ac/0x565 kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 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+0x1e1/0x330 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:unlock_new_inode.cold+0x11/0x3f fs/inode.c:979
Code: ee e8 31 ee b4 ff 48 c7 c7 80 0e 16 88 e8 54 69 9e ff 0f 0b e9 a7 76 ff ff e8 19 ee b4 ff 48 c7 c7 80 0e 16 88 e8 3c 69 9e ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 80 3c 02 00
RSP: 0018:ffff88804d92f670 EFLAGS: 00010286
RAX: 0000000000000024 RBX: ffff88804eeb31a8 RCX: 0000000000000000
RDX: 0000000000030764 RSI: ffffffff815b523f RDI: ffffed1009b25ec0
RBP: 0000000000000000 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88804eeb3278
R13: ffff88804eeb3230 R14: 0000000000000000 R15: 00000000fffffff4
 reiserfs_new_inode+0x3b8/0x2150 fs/reiserfs/inode.c:2168
 reiserfs_mkdir+0x4ad/0x980 fs/reiserfs/namei.c:841
 create_privroot fs/reiserfs/xattr.c:873 [inline]
 reiserfs_xattr_init+0x406/0xae0 fs/reiserfs/xattr.c:995
 reiserfs_remount+0x103c/0x1640 fs/reiserfs/super.c:1599
 do_remount_sb+0x1a0/0x6a0 fs/super.c:888
 do_remount fs/namespace.c:2290 [inline]
 do_mount+0x1854/0x2f10 fs/namespace.c:2790
 ksys_mount+0xcf/0x130 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3026
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x460bca
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 dd 87 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ba 87 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fae5887aa88 EFLAGS: 00000212 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fae5887ab20 RCX: 0000000000460bca
RDX: 0000000020000540 RSI: 0000000020000580 RDI: 0000000000000000
RBP: 00007fae5887aae0 R08: 00007fae5887ab20 R09: 0000000020000540
R10: 0000000000240038 R11: 0000000000000212 R12: 0000000020000540
R13: 0000000020000580 R14: 0000000000000000 R15: 0000000020001ec0
Kernel Offset: disabled
Rebooting in 86400 seconds..