sg_write: data in/out 262577/146 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.4 not setting count and/or reply_len properly
REISERFS warning (device loop5):  reiserfs_fill_super: Cannot allocate memory for journal device name
------------[ cut here ]------------
kernel BUG at fs/reiserfs/lock.c:44!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 23023 Comm: syz-executor.5 Not tainted 5.0.0-rc8+ #1
kobject: 'loop3' (00000000dbd37e8e): kobject_uevent_env
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 1d 89 ff 48 8d 7b 28 48 c7 83 a8 00 00 00 00 00 00 00 e8 34 ad 1b 05 e8 8f 1d 89 ff 5b 41 5c 5d c3 e8 85 1d 89 ff <0f> 0b e8 7e 1e c0 ff eb a1 e8 97 1e c0 ff e9 33 ff ff ff e8 8d 1e
kobject: 'kvm' (00000000788f2d24): kobject_uevent_env
RSP: 0018:ffff8880586bfa10 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88809cc096c0 RCX: ffffc9001089c000
RDX: 0000000000040000 RSI: ffffffff81e6c19b RDI: ffff88809cc09768
RBP: ffff8880586bfa20 R08: 0000000000000065 R09: ffffed1015d25021
R10: ffffed1015d25020 R11: ffff8880ae928107 R12: 00000000ffffffea
R13: ffff888052cace80 R14: ffff8880586bfbc0 R15: ffff88809cc096c0
kobject: 'loop3' (00000000dbd37e8e): fill_kobj_path: path = '/devices/virtual/block/loop3'
FS:  00007fb4a3939700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000940004 CR3: 0000000096980000 CR4: 00000000001426e0
Call Trace:
kobject: 'loop0' (0000000054045cd5): kobject_uevent_env
 reiserfs_fill_super+0x2b51/0x2eb0 fs/reiserfs/super.c:2219
kobject: 'loop0' (0000000054045cd5): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'kvm' (00000000788f2d24): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (00000000788f2d24): kobject_uevent_env
kobject: 'kvm' (00000000788f2d24): fill_kobj_path: path = '/devices/virtual/misc/kvm'
 mount_bdev+0x307/0x3c0 fs/super.c:1159
 get_super_block+0x35/0x40 fs/reiserfs/super.c:2605
 mount_fs+0x106/0x3ff fs/super.c:1258
 vfs_kern_mount.part.0+0x6f/0x410 fs/namespace.c:959
 vfs_kern_mount fs/namespace.c:949 [inline]
 do_new_mount fs/namespace.c:2513 [inline]
 do_mount+0x581/0x2d30 fs/namespace.c:2845
 ksys_mount+0xdb/0x150 fs/namespace.c:3061
 __do_sys_mount fs/namespace.c:3075 [inline]
 __se_sys_mount fs/namespace.c:3072 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3072
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a89a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 2d 8e 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 0a 8e fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fb4a3938a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb4a3938b30 RCX: 000000000045a89a
RDX: 00007fb4a3938ad0 RSI: 0000000020003300 RDI: 00007fb4a3938af0
RBP: 0000000020003300 R08: 00007fb4a3938b30 R09: 00007fb4a3938ad0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000004
R13: 0000000000000000 R14: 00000000004dbdb0 R15: 0000000000000003
Modules linked in:
---[ end trace 80418985fd62802b ]---
kobject: 'loop0' (0000000054045cd5): kobject_uevent_env
RIP: 0010:reiserfs_write_unlock+0xeb/0x110 fs/reiserfs/lock.c:44
kobject: 'kvm' (00000000788f2d24): kobject_uevent_env
Code: 5d c3 e8 a8 1d 89 ff 48 8d 7b 28 48 c7 83 a8 00 00 00 00 00 00 00 e8 34 ad 1b 05 e8 8f 1d 89 ff 5b 41 5c 5d c3 e8 85 1d 89 ff <0f> 0b e8 7e 1e c0 ff eb a1 e8 97 1e c0 ff e9 33 ff ff ff e8 8d 1e
kobject: 'kvm' (00000000788f2d24): fill_kobj_path: path = '/devices/virtual/misc/kvm'
sg_write: data in/out 262577/144 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.3 not setting count and/or reply_len properly
kobject: 'loop0' (0000000054045cd5): fill_kobj_path: path = '/devices/virtual/block/loop0'
sg_write: data in/out 262577/104 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.0 not setting count and/or reply_len properly
kobject: 'loop4' (000000003e099d37): kobject_uevent_env
kobject: 'loop4' (000000003e099d37): fill_kobj_path: path = '/devices/virtual/block/loop4'
RSP: 0018:ffff8880586bfa10 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88809cc096c0 RCX: ffffc9001089c000
RDX: 0000000000040000 RSI: ffffffff81e6c19b RDI: ffff88809cc09768
kobject: 'loop1' (00000000cc048270): kobject_uevent_env
kobject: 'kvm' (00000000788f2d24): kobject_uevent_env
RBP: ffff8880586bfa20 R08: 0000000000000065 R09: ffffed1015d25021
sg_write: data in/out 262577/146 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor.4 not setting count and/or reply_len properly
R10: ffffed1015d25020 R11: ffff8880ae928107 R12: 00000000ffffffea
kobject: 'kvm' (00000000788f2d24): fill_kobj_path: path = '/devices/virtual/misc/kvm'
R13: ffff888052cace80 R14: ffff8880586bfbc0 R15: ffff88809cc096c0
kobject: 'loop1' (00000000cc048270): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000dbd37e8e): kobject_uevent_env
FS:  00007fb4a3939700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
kobject: 'kvm' (00000000788f2d24): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop3' (00000000dbd37e8e): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (000000003e099d37): kobject_uevent_env
CR2: 0000001b2c822000 CR3: 0000000096980000 CR4: 00000000001426e0
kobject: 'kvm' (00000000788f2d24): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'loop4' (000000003e099d37): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop2' (00000000dfdffc44): kobject_uevent_env