loop0: detected capacity change from 0 to 512
EXT4-fs (loop0): invalid journal inode
EXT4-fs (loop0): can't get journal size
EXT4-fs (loop0): 1 truncate cleaned up
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:73 [inline]
 should_fail_ex+0x410/0x560 lib/fault-inject.c:174
 should_failslab+0xa8/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4638 [inline]
 slab_alloc_node mm/slub.c:4974 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kmalloc_flags_noprof+0x128/0x7a0 mm/slub.c:5602
 _kmalloc_flags_noprof mm/slab.h:55 [inline]
 alloc_slab_obj_exts+0x5c/0x180 mm/slub.c:2186
 __memcg_slab_post_alloc_hook+0x60b/0xd90 mm/memcontrol.c:3649
 memcg_slab_post_alloc_hook mm/slub.c:2517 [inline]
 slab_post_alloc_hook mm/slub.c:4702 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 __kmalloc_cache_noprof+0x366/0x600 mm/slub.c:5559
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 alloc_pipe_info+0xe8/0x4c0 fs/pipe.c:883
 splice_direct_to_actor+0xa41/0xcb0 fs/splice.c:1047
 do_splice_direct_actor fs/splice.c:1202 [inline]
 do_splice_direct+0x195/0x290 fs/splice.c:1228
 do_sendfile+0x52e/0x7c0 fs/read_write.c:1371
 __do_sys_sendfile64 fs/read_write.c:1432 [inline]
 __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1418
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1605d9e199
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1606b94fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f1606025fa0 RCX: 00007f1605d9e199
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f1606b95050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f1606026038 R14: 00007f1606025fa0 R15: 00007ffe372551d8
 </TASK>
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=258, nr_sectors = 24 limit=64
EXT4-fs warning (device loop0): ext4_end_bio:364: I/O error 10 writing to inode 15 starting block 129)
Buffer I/O error on device loop0, logical block 129
Buffer I/O error on device loop0, logical block 130
Buffer I/O error on device loop0, logical block 131
Buffer I/O error on device loop0, logical block 132
Buffer I/O error on device loop0, logical block 133
Buffer I/O error on device loop0, logical block 134
Buffer I/O error on device loop0, logical block 135
Buffer I/O error on device loop0, logical block 136
Buffer I/O error on device loop0, logical block 137
Buffer I/O error on device loop0, logical block 138
------------[ cut here ]------------
kernel BUG at fs/ext4/mballoc.c:4781!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 fs/ext4/mballoc.c:4781
Code: e8 96 ab a1 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 82 29 2f ff 90 0f 0b e8 7a 29 2f ff 90 0f 0b e8 72 29 2f ff 90 <0f> 0b e8 6a 29 2f ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80
RSP: 0018:ffffc9000e3de620 EFLAGS: 00010293
RAX: ffffffff8298f6de RBX: 00000000fffffffc RCX: ffff888000e32580
RDX: 0000000000000000 RSI: 0000000000000034 RDI: 0000000000000030
RBP: 1ffff11008a61929 R08: ffff888045310efb R09: 1ffff11008a621df
R10: dffffc0000000000 R11: ffffed1008a621e0 R12: 0000000000000000
R13: 0000000000000034 R14: 1ffff11008a621e2 R15: ffff888045310f10
FS:  00007f1606b956c0(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561b96486258 CR3: 000000001fb14000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ext4_mb_use_preallocated+0x638/0x13e0 fs/ext4/mballoc.c:4998
 ext4_mb_new_blocks+0x5a0/0x4530 fs/ext4/mballoc.c:6302
 ext4_alloc_branch fs/ext4/indirect.c:340 [inline]
 ext4_ind_map_blocks+0xe96/0x22a0 fs/ext4/indirect.c:635
 ext4_map_create_blocks+0xbb/0x530 fs/ext4/inode.c:632
 ext4_map_blocks+0x791/0x12c0 fs/ext4/inode.c:823
 mpage_map_one_extent fs/ext4/inode.c:2379 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2469 [inline]
 ext4_do_writepages+0x1901/0x4770 fs/ext4/inode.c:2938
 ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032
 do_writepages+0x338/0x560 mm/page-writeback.c:2560
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_fdatawrite_range mm/filemap.c:412 [inline]
 file_write_and_wait_range+0x36e/0x440 mm/filemap.c:786
 ext4_sync_file+0x252/0xa40 fs/ext4/fsync.c:145
 generic_write_sync include/linux/fs.h:2686 [inline]
 ext4_buffered_write_iter+0x2d0/0x380 fs/ext4/file.c:360
 ext4_file_write_iter+0xae4/0x1cd0 fs/ext4/file.c:-1
 iter_file_splice_write+0xa31/0x1240 fs/splice.c:736
 do_splice_from fs/splice.c:936 [inline]
 direct_splice_actor+0x101/0x160 fs/splice.c:1159
 splice_direct_to_actor+0x57b/0xcb0 fs/splice.c:1103
 do_splice_direct_actor fs/splice.c:1202 [inline]
 do_splice_direct+0x195/0x290 fs/splice.c:1228
 do_sendfile+0x52e/0x7c0 fs/read_write.c:1371
 __do_sys_sendfile64 fs/read_write.c:1432 [inline]
 __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1418
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1605d9e199
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1606b94fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f1606025fa0 RCX: 00007f1605d9e199
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f1606b95050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f1606026038 R14: 00007f1606025fa0 R15: 00007ffe372551d8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 fs/ext4/mballoc.c:4781
Code: e8 96 ab a1 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 82 29 2f ff 90 0f 0b e8 7a 29 2f ff 90 0f 0b e8 72 29 2f ff 90 <0f> 0b e8 6a 29 2f ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80
RSP: 0018:ffffc9000e3de620 EFLAGS: 00010293
RAX: ffffffff8298f6de RBX: 00000000fffffffc RCX: ffff888000e32580
RDX: 0000000000000000 RSI: 0000000000000034 RDI: 0000000000000030
RBP: 1ffff11008a61929 R08: ffff888045310efb R09: 1ffff11008a621df
R10: dffffc0000000000 R11: ffffed1008a621e0 R12: 0000000000000000
R13: 0000000000000034 R14: 1ffff11008a621e2 R15: ffff888045310f10
FS:  00007f1606b956c0(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561b96486258 CR3: 000000001fb14000 CR4: 0000000000352ef0