EXT4-fs error (device loop1): ext4_mb_generate_buddy:744: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
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netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
kernel BUG at fs/ext4/inode.c:2794!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 12436 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:ext4_writepages+0x2d31/0x37f0 fs/ext4/inode.c:2794
Code: 00 fc ff df 44 89 64 24 18 48 c1 ea 03 80 3c 02 00 0f 84 25 da ff ff 48 8b 3c 24 e8 89 2d b8 ff e9 17 da ff ff e8 8f 50 82 ff <0f> 0b 4c 8b b4 24 20 01 00 00 e8 80 50 82 ff 0f b6 ac 24 50 02 00
RSP: 0018:ffff888096be78a8 EFLAGS: 00010293
RAX: ffff888092d3c140 RBX: 0000000000000001 RCX: ffffffff81e03070
RDX: 0000000000000000 RSI: ffffffff81e034e1 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88804072e870 R15: 0000000000000000
FS:  0000555555a95400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31e2b000 CR3: 000000009c894000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 ext4_alloc_da_blocks+0x207/0x360 fs/ext4/inode.c:3273
 ext4_release_file+0x1ed/0x340 fs/ext4/file.c:89
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fbd5d308f7b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007fffd12a2a80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fbd5d308f7b
RDX: 0000000000000000 RSI: 0000001b31e29f70 RDI: 0000000000000004
RBP: 00007fbd5d478980 R08: 0000000000000000 R09: 00000000ee5a3a10
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000057b7d
R13: 00007fffd12a2b80 R14: 00007fffd12a2ba0 R15: 0000000000000032
Modules linked in:
---[ end trace 12ec8f5bd288134f ]---
RIP: 0010:ext4_writepages+0x2d31/0x37f0 fs/ext4/inode.c:2794
Code: 00 fc ff df 44 89 64 24 18 48 c1 ea 03 80 3c 02 00 0f 84 25 da ff ff 48 8b 3c 24 e8 89 2d b8 ff e9 17 da ff ff e8 8f 50 82 ff <0f> 0b 4c 8b b4 24 20 01 00 00 e8 80 50 82 ff 0f b6 ac 24 50 02 00
RSP: 0018:ffff888096be78a8 EFLAGS: 00010293
RAX: ffff888092d3c140 RBX: 0000000000000001 RCX: ffffffff81e03070
RDX: 0000000000000000 RSI: ffffffff81e034e1 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88804072e870 R15: 0000000000000000
FS:  0000555555a95400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31e2b000 CR3: 000000009c894000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400