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kernel BUG at fs/reiserfs/lock.c:44!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 11393 Comm: syz-executor.1 Not tainted 4.19.72 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:reiserfs_write_unlock+0xeb/0x110 fs/reiserfs/lock.c:44
Code: 5d c3 e8 a8 59 89 ff 48 8d 7b 28 48 c7 83 a8 00 00 00 00 00 00 00 e8 94 05 11 05 e8 8f 59 89 ff 5b 41 5c 5d c3 e8 85 59 89 ff <0f> 0b e8 de ec bf ff eb a1 e8 f7 ec bf ff e9 33 ff ff ff e8 ed ec
kobject: 'loop4' (00000000deb8acff): kobject_uevent_env
RSP: 0018:ffff88805888fa88 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88808c01a040 RCX: ffffc90008080000
RDX: 0000000000040000 RSI: ffffffff81e1fd0b RDI: ffff88808c01a0e8
RBP: ffff88805888fa98 R08: 0000000000000065 R09: ffffed1015d05079
R10: ffffed1015d05078 R11: ffff8880ae8283c7 R12: 00000000ffffffea
R13: ffff88808f47eb40 R14: ffff88805888fc38 R15: ffff88808c01a040
FS:  00007f8fea0e9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
kobject: 'loop4' (00000000deb8acff): fill_kobj_path: path = '/devices/virtual/block/loop4'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000100 CR3: 00000000a4cdd000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reiserfs_fill_super+0x2b51/0x2eb0 fs/reiserfs/super.c:2219
 mount_bdev+0x304/0x3c0 fs/super.c:1158
 get_super_block+0x35/0x40 fs/reiserfs/super.c:2605
 mount_fs+0xa8/0x31f fs/super.c:1261
 vfs_kern_mount.part.0+0x6f/0x410 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2469 [inline]
 do_mount+0x53e/0x2bc0 fs/namespace.c:2799
 ksys_mount+0xdb/0x150 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3026
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c33a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 9d 8d 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 7a 8d fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f8fea0e8a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8fea0e8b40 RCX: 000000000045c33a
RDX: 00007f8fea0e8ae0 RSI: 0000000020000440 RDI: 00007f8fea0e8b00
RBP: 0000000000000000 R08: 00007f8fea0e8b40 R09: 00007f8fea0e8ae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004
R13: 00000000004c8b26 R14: 00000000004dfab0 R15: 0000000000000003
Modules linked in:
---[ end trace b8b995172055d510 ]---
RIP: 0010:reiserfs_write_unlock+0xeb/0x110 fs/reiserfs/lock.c:44
Code: 5d c3 e8 a8 59 89 ff 48 8d 7b 28 48 c7 83 a8 00 00 00 00 00 00 00 e8 94 05 11 05 e8 8f 59 89 ff 5b 41 5c 5d c3 e8 85 59 89 ff <0f> 0b e8 de ec bf ff eb a1 e8 f7 ec bf ff e9 33 ff ff ff e8 ed ec
kobject: 'loop2' (00000000c1ba9b64): kobject_uevent_env
kobject: 'loop2' (00000000c1ba9b64): fill_kobj_path: path = '/devices/virtual/block/loop2'
RSP: 0018:ffff88805888fa88 EFLAGS: 00010246
kobject: 'loop5' (000000003f0f2838): kobject_uevent_env
kobject: 'loop5' (000000003f0f2838): fill_kobj_path: path = '/devices/virtual/block/loop5'
RAX: 0000000000040000 RBX: ffff88808c01a040 RCX: ffffc90008080000
RDX: 0000000000040000 RSI: ffffffff81e1fd0b RDI: ffff88808c01a0e8
kobject: 'loop0' (0000000015a87ff0): kobject_uevent_env
RBP: ffff88805888fa98 R08: 0000000000000065 R09: ffffed1015d05079
R10: ffffed1015d05078 R11: ffff8880ae8283c7 R12: 00000000ffffffea
kobject: 'loop0' (0000000015a87ff0): fill_kobj_path: path = '/devices/virtual/block/loop0'
R13: ffff88808f47eb40 R14: ffff88805888fc38 R15: ffff88808c01a040
kobject: 'loop3' (000000005261df30): kobject_uevent_env
FS:  00007f8fea0e9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
kobject: 'loop3' (000000005261df30): fill_kobj_path: path = '/devices/virtual/block/loop3'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop1' (00000000ba709339): kobject_uevent_env
CR2: 0000000000738000 CR3: 00000000a4cdd000 CR4: 00000000001406f0
kobject: 'loop1' (00000000ba709339): fill_kobj_path: path = '/devices/virtual/block/loop1'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400