EXT4-fs error (device loop1): ext4_xattr_block_get:562: inode #16: comm syz-executor.1: corrupted xattr block 37 EXT4-fs error (device loop1): __ext4_get_inode_loc:4492: comm syz-executor.1: Invalid inode table block 0 in block_group 0 EXT4-fs error (device loop1) in ext4_reserve_inode_write:5841: Corrupt filesystem EXT4-fs error (device loop1): ext4_dirty_inode:6045: inode #16: comm syz-executor.1: mark_inode_dirty error ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3331! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 20730 Comm: syz-executor.1 Tainted: G W 6.1.25-syzkaller-00104-g8f5a2209750e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline] RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2162 Code: c4 ff e9 b5 fb ff ff e8 9a 9f 7e ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 86 9f 7e ff e9 51 f7 ff ff e8 7c 9f 7e ff <0f> 0b e8 25 be 10 03 e8 70 9f 7e ff 0f 0b e8 69 9f 7e ff 0f 0b e8 RSP: 0018:ffffc9000cf06b00 EFLAGS: 00010283 RAX: ffffffff81f52434 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90006f81000 RSI: 0000000000001c15 RDI: 0000000000001c16 RBP: ffffc9000cf06c10 R08: ffffffff81f5176b R09: ffffed1028c8de57 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023608a79 R13: 0000000000000001 R14: 1ffff920019e0d70 R15: ffff88811b0453c8 FS: 00007f380ea20700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3052d000 CR3: 000000012055b000 CR4: 00000000003506a0 Call Trace: ext4_mb_regular_allocator+0x24c/0x3610 fs/ext4/mballoc.c:2614 ext4_mb_new_blocks+0xfd3/0x48f0 fs/ext4/mballoc.c:5611 ext4_ext_map_blocks+0x19ca/0x71e0 fs/ext4/extents.c:4287 ext4_map_blocks+0xa42/0x1ce0 fs/ext4/inode.c:651 ext4_iomap_alloc fs/ext4/inode.c:3422 [inline] ext4_iomap_begin+0x824/0xd10 fs/ext4/inode.c:3472 iomap_iter+0x5c1/0xbf0 fs/iomap/iter.c:74 __iomap_dio_rw+0xddc/0x20a0 fs/iomap/direct-io.c:601 iomap_dio_rw+0x41/0x90 fs/iomap/direct-io.c:690 ext4_dio_write_iter fs/ext4/file.c:587 [inline] ext4_file_write_iter+0x1123/0x1cf0 fs/ext4/file.c:698 call_write_iter include/linux/fs.h:2215 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x8d1/0xe80 fs/read_write.c:584 ksys_write+0x199/0x2c0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:646 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f380dc8c389 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f380ea20168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f380ddabf80 RCX: 00007f380dc8c389 RDX: 0000000000000009 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00007f380dcd7493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe02222a7f R14: 00007f380ea20300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline] RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2162 Code: c4 ff e9 b5 fb ff ff e8 9a 9f 7e ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 86 9f 7e ff e9 51 f7 ff ff e8 7c 9f 7e ff <0f> 0b e8 25 be 10 03 e8 70 9f 7e ff 0f 0b e8 69 9f 7e ff 0f 0b e8 RSP: 0018:ffffc9000cf06b00 EFLAGS: 00010283 RAX: ffffffff81f52434 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90006f81000 RSI: 0000000000001c15 RDI: 0000000000001c16 RBP: ffffc9000cf06c10 R08: ffffffff81f5176b R09: ffffed1028c8de57 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023608a79 R13: 0000000000000001 R14: 1ffff920019e0d70 R15: ffff88811b0453c8 FS: 00007f380ea20700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4836e4e000 CR3: 000000012055b000 CR4: 00000000003506b0