EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:422: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:422: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:422: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
------------[ cut here ]------------
mb_load_buddy failed (-117)
WARNING: CPU: 0 PID: 4264 at fs/ext4/mballoc.c:3298 ext4_discard_allocated_blocks fs/ext4/mballoc.c:3298 [inline]
WARNING: CPU: 0 PID: 4264 at fs/ext4/mballoc.c:3298 ext4_discard_allocated_blocks+0x89/0x170 fs/ext4/mballoc.c:3282
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4264 Comm: syz-executor.0 Not tainted 4.19.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x89/0xba lib/dump_stack.c:113
 panic+0xef/0x23c kernel/panic.c:184
 __warn.cold.7+0x31/0x39 kernel/panic.c:536
 report_bug+0xb6/0xe0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0xfe/0x180 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993
RIP: 0010:ext4_discard_allocated_blocks fs/ext4/mballoc.c:3298 [inline]
RIP: 0010:ext4_discard_allocated_blocks+0x89/0x170 fs/ext4/mballoc.c:3282
Code: c0 74 d0 8b 77 48 48 8d 55 a8 b9 40 00 60 00 48 8b 7f 08 e8 29 ef ff ff 85 c0 74 12 89 c6 48 c7 c7 cc 59 8a 82 e8 14 7b d3 ff <0f> 0b eb a5 4c 8b 6b 08 44 8b 63 48 49 8b 85 78 06 00 00 41 83 e4
RSP: 0018:ffffc900030b7860 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff880135b23280 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff82885d2a RDI: 00000000ffffffff
RBP: ffffc900030b78b8 R08: 0000000000000000 R09: 0000000088bc9bcc
R10: ffffffff82c5edb8 R11: ffff8801344b37e8 R12: ffffc900030b79b4
R13: 0000000000000000 R14: ffffc900030b79d8 R15: ffff880135b23280
 ext4_mb_new_blocks+0x76e/0xdf0 fs/ext4/mballoc.c:4557
 ext4_ext_map_blocks+0xdd3/0x16a0 fs/ext4/extents.c:4467
 ext4_map_blocks+0xf2/0x5d0 fs/ext4/inode.c:636
 _ext4_get_block+0x8e/0x110 fs/ext4/inode.c:783
 ext4_get_block+0x11/0x20 fs/ext4/inode.c:800
 __block_write_begin_int+0x184/0x600 fs/buffer.c:1966
 __block_write_begin+0xc/0x10 fs/buffer.c:2016
 ext4_write_begin+0x1ee/0x5f0 fs/ext4/inode.c:1318
 ext4_da_write_begin+0x350/0x460 fs/ext4/inode.c:3023
 generic_perform_write+0xb9/0x1a0 mm/filemap.c:3139
 __generic_file_write_iter+0x147/0x1c0 mm/filemap.c:3264
 ext4_file_write_iter+0x225/0x3c0 fs/ext4/file.c:266
 call_write_iter include/linux/fs.h:1808 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x10d/0x160 fs/read_write.c:487
 vfs_write fs/read_write.c:549 [inline]
 vfs_write+0xaa/0x1a0 fs/read_write.c:533
 ksys_write+0x53/0xc0 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x15/0x20 fs/read_write.c:607
 do_syscall_64+0x63/0x180 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fcf4cd48ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcf4c8cb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcf4ce67f80 RCX: 00007fcf4cd48ae9
RDX: 000000000000a000 RSI: 0000000020000780 RDI: 0000000000000005
RBP: 00007fcf4cd9447a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007fcf4ce67f80 R15: 00007ffc59f96a48
Kernel Offset: disabled
Rebooting in 86400 seconds..