loop0: detected capacity change from 512 to 0
EXT4-fs error (device loop0): ext4_fill_super:4943: inode #2: comm syz-executor024: iget: root inode unallocated
EXT4-fs (loop0): get root inode failed
EXT4-fs (loop0): mount failed
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: print_daily_error_info+0x0/0x1f0 fs/ext4/super.c:1334
WARNING: CPU: 1 PID: 15324 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 1 PID: 15324 Comm: syz-executor024 Not tainted 5.11.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 ed 9e 89 4c 89 ee 48 c7 c7 00 e1 9e 89 e8 9e 29 f6 04 <0f> 0b 83 05 a5 f1 40 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000a2c79b8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff88801ecf5340 RSI: ffffffff815b6225 RDI: fffff52001458f29
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815af3fe R11: 0000000000000000 R12: ffffffff894d8b60
R13: ffffffff899ee740 R14: ffffffff8161be60 R15: dffffc0000000000
FS:  000000000256f940(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000020b5a000 CR4: 0000000000350ef0
Call Trace:
 __debug_check_no_obj_freed lib/debugobjects.c:987 [inline]
 debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1018
 slab_free_hook mm/slub.c:1539 [inline]
 slab_free_freelist_hook+0x107/0x150 mm/slub.c:1580
 slab_free mm/slub.c:3143 [inline]
 kfree+0xdb/0x3b0 mm/slub.c:4125
 ext4_fill_super+0x84f/0xde80 fs/ext4/super.c:5175
 mount_bdev+0x34d/0x410 fs/super.c:1366
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1496
 do_new_mount fs/namespace.c:2881 [inline]
 path_mount+0x13ad/0x20c0 fs/namespace.c:3211
 do_mount fs/namespace.c:3224 [inline]
 __do_sys_mount fs/namespace.c:3432 [inline]
 __se_sys_mount fs/namespace.c:3409 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3409
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x451d0a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d 9c 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 5a 9c fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007ffdbd3150f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffdbd315150 RCX: 0000000000451d0a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffdbd315110
RBP: 0000000000000004 R08: 00007ffdbd315150 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 00007ffdbd315110 R14: 0000000000000000 R15: 0000000020000270