EXT4-fs error (device loop5): ext4_xattr_inode_iget:402: comm syz.5.191: inode #59392: comm syz.5.191: iget: illegal inode #
EXT4-fs error (device loop5): ext4_xattr_inode_iget:407: comm syz.5.191: error while reading EA inode 59392 err=-117
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kernel BUG at fs/ext4/ext4.h:2985!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 1197 Comm: syz.5.191 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2985 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xeb2/0xed0 fs/ext4/mballoc.c:1117
Code: ff e8 82 5e cd ff e9 82 f3 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c c8 f3 ff ff e8 88 5e cd ff e9 be f3 ff ff e8 ce 63 9f ff <0f> 0b e8 c7 63 9f ff 0f 0b e8 c0 63 9f ff 0f 0b e8 b9 63 9f ff 0f
RSP: 0018:ffff8881db8671b8 EFLAGS: 00010283
RAX: ffffffff81c01b12 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90000270000 RSI: 0000000000000356 RDI: 0000000000000357
RBP: ffff8881db867240 R08: dffffc0000000000 R09: ffff8881db8672a0
R10: ffffed103b70ce5b R11: 1ffff1103b70ce54 R12: 1ffff1103cd4507e
R13: ffff8881e6a2f000 R14: ffff8881e6a28018 R15: 0000000000000001
FS:  00007f026f4d06c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000004007f CR3: 00000001eed0b000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_mb_load_buddy fs/ext4/mballoc.c:1242 [inline]
 ext4_mballoc_query_range+0x63/0x470 fs/ext4/mballoc.c:5446
 ext4_getfsmap_datadev+0x1a44/0x2450 fs/ext4/fsmap.c:589
 ext4_getfsmap+0xa2b/0xc60 fs/ext4/fsmap.c:762
 ext4_ioc_getfsmap fs/ext4/ioctl.c:679 [inline]
 ext4_ioctl+0x32b5/0x3aa0 fs/ext4/ioctl.c:832
 do_vfs_ioctl+0x753/0x13f0 fs/ioctl.c:47
 ksys_ioctl fs/ioctl.c:742 [inline]
 __do_sys_ioctl fs/ioctl.c:749 [inline]
 __se_sys_ioctl fs/ioctl.c:747 [inline]
 __x64_sys_ioctl+0xe1/0x120 fs/ioctl.c:747
 do_syscall_64+0xcf/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f0270e67969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f026f4d0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f027108efa0 RCX: 00007f0270e67969
RDX: 0000200000000500 RSI: 00000000c0c0583b RDI: 000000000000000c
RBP: 00007f0270ee9ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f027108efa0 R15: 00007ffffaa30bb8
Modules linked in:
---[ end trace 0cef0f20219dd533 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2985 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xeb2/0xed0 fs/ext4/mballoc.c:1117
Code: ff e8 82 5e cd ff e9 82 f3 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c c8 f3 ff ff e8 88 5e cd ff e9 be f3 ff ff e8 ce 63 9f ff <0f> 0b e8 c7 63 9f ff 0f 0b e8 c0 63 9f ff 0f 0b e8 b9 63 9f ff 0f
RSP: 0018:ffff8881db8671b8 EFLAGS: 00010283
RAX: ffffffff81c01b12 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90000270000 RSI: 0000000000000356 RDI: 0000000000000357
RBP: ffff8881db867240 R08: dffffc0000000000 R09: ffff8881db8672a0
R10: ffffed103b70ce5b R11: 1ffff1103b70ce54 R12: 1ffff1103cd4507e
R13: ffff8881e6a2f000 R14: ffff8881e6a28018 R15: 0000000000000001
FS:  00007f026f4d06c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f026f4aef98 CR3: 00000001eed0b000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400