EXT4-fs error (device loop1): ext4_clear_blocks:858: inode #18: comm syz.1.20: attempt to clear invalid blocks 36 len 12
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kernel BUG at fs/ext4/ext4.h:2985!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 438 Comm: syz.1.20 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_free_blocks+0x1fc1/0x2030 fs/ext4/mballoc.c:4857
Code: 08 48 89 df e8 00 b2 cc ff 49 83 7e 18 00 74 31 e8 c4 b7 9e ff 49 83 c6 18 e9 6b ff ff ff e8 b6 b7 9e ff 0f 0b e8 af b7 9e ff <0f> 0b e8 a8 b7 9e ff 0f 0b e8 a1 b7 9e ff eb 36 e8 9a b7 9e ff 0f
RSP: 0018:ffff8881e9a97320 EFLAGS: 00010283
RAX: ffffffff81c0c731 RBX: 0000000000001fd0 RCX: 0000000000080000
RDX: ffffc90000944000 RSI: 0000000000013f78 RDI: 0000000000013f79
RBP: ffff8881e9a97528 R08: dffffc0000000000 R09: ffff8881e9a97448
R10: ffffed103d352e90 R11: 1ffff1103d352e89 R12: ffff8881e93ba000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881dd276518
FS:  00007f5b55ce06c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000680 CR3: 00000001ea3b1000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_clear_blocks+0x8b8/0xcf0 fs/ext4/indirect.c:887
 ext4_free_data+0x130/0x340 fs/ext4/indirect.c:947
 ext4_free_branches+0x6f/0xb70 fs/ext4/indirect.c:1106
 ext4_ind_remove_space+0x1477/0x1a60 fs/ext4/indirect.c:1331
 ext4_punch_hole+0x69c/0xae0 fs/ext4/inode.c:4495
 ext4_fallocate+0x25d/0x540 fs/ext4/extents.c:4991
 vfs_fallocate+0x587/0x700 fs/open.c:309
 madvise_remove mm/madvise.c:867 [inline]
 madvise_vma mm/madvise.c:950 [inline]
 do_madvise+0xd44/0x1ea0 mm/madvise.c:1172
 __do_sys_madvise mm/madvise.c:1198 [inline]
 __se_sys_madvise mm/madvise.c:1196 [inline]
 __x64_sys_madvise+0xa9/0xc0 mm/madvise.c:1196
 do_syscall_64+0xcf/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f5b57677969
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:00007f5b55ce0038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f5b5789efa0 RCX: 00007f5b57677969
RDX: 0000000000000009 RSI: 000000000060000b RDI: 0000200000000000
RBP: 00007f5b576f9ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5b5789efa0 R15: 00007ffcef060828
Modules linked in:
---[ end trace 482dba15d8e71905 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2985 [inline]
RIP: 0010:ext4_free_blocks+0x1fc1/0x2030 fs/ext4/mballoc.c:4857
Code: 08 48 89 df e8 00 b2 cc ff 49 83 7e 18 00 74 31 e8 c4 b7 9e ff 49 83 c6 18 e9 6b ff ff ff e8 b6 b7 9e ff 0f 0b e8 af b7 9e ff <0f> 0b e8 a8 b7 9e ff 0f 0b e8 a1 b7 9e ff eb 36 e8 9a b7 9e ff 0f
RSP: 0018:ffff8881e9a97320 EFLAGS: 00010283
RAX: ffffffff81c0c731 RBX: 0000000000001fd0 RCX: 0000000000080000
RDX: ffffc90000944000 RSI: 0000000000013f78 RDI: 0000000000013f79
RBP: ffff8881e9a97528 R08: dffffc0000000000 R09: ffff8881e9a97448
R10: ffffed103d352e90 R11: 1ffff1103d352e89 R12: ffff8881e93ba000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881dd276518
FS:  00007f5b55ce06c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000180 CR3: 00000001ea3b1000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400