EXT4-fs error (device loop0) in ext4_reserve_inode_write:5808: Corrupt filesystem EXT4-fs error (device loop0): ext4_dirty_inode:6012: inode #16: comm syz-executor955: mark_inode_dirty error ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3355! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 293 Comm: syz-executor955 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3355 [inline] RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2206 Code: c6 ff e9 b5 fb ff ff e8 6a 0a 85 ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 56 0a 85 ff e9 51 f7 ff ff e8 4c 0a 85 ff <0f> 0b e8 55 03 d0 02 e8 40 0a 85 ff 0f 0b e8 39 0a 85 ff 0f 0b e8 RSP: 0018:ffffc90000986ac0 EFLAGS: 00010293 RAX: ffffffff81eae174 RBX: 0000000000000001 RCX: ffff88811ef3bb40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90000986bd0 R08: ffffffff81ead4ab R09: ffffed10217cc98a R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023deba79 R13: 0000000000000001 R14: 1ffff92000130d68 R15: ffff88811ef5d3c8 FS: 0000555556d74300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562dcad0f048 CR3: 000000011bca0000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_mb_regular_allocator+0x247/0x3810 fs/ext4/mballoc.c:2658 ext4_mb_new_blocks+0xe3c/0x43f0 fs/ext4/mballoc.c:5623 ext4_ext_map_blocks+0x1a0d/0x7250 fs/ext4/extents.c:4287 ext4_map_blocks+0xaa7/0x1e30 fs/ext4/inode.c:646 ext4_iomap_alloc fs/ext4/inode.c:3427 [inline] ext4_iomap_begin+0x824/0xd10 fs/ext4/inode.c:3477 iomap_iter+0x5b5/0xbe0 fs/iomap/iter.c:74 __iomap_dio_rw+0xb3a/0x1ed0 fs/iomap/direct-io.c:593 iomap_dio_rw+0x3e/0x90 fs/iomap/direct-io.c:680 ext4_dio_write_iter fs/ext4/file.c:576 [inline] ext4_file_write_iter+0x1142/0x1cc0 fs/ext4/file.c:687 call_write_iter include/linux/fs.h:2159 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0xd8a/0x1160 fs/read_write.c:594 ksys_write+0x199/0x2c0 fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:656 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+0x61/0xcb RIP: 0033:0x7fade3d3a959 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc0246e6d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fade3d3a959 RDX: 000000000002a000 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007fade3cfa1f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fade3cfa280 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 25e96ec5b64f9202 ]--- RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3355 [inline] RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2206 Code: c6 ff e9 b5 fb ff ff e8 6a 0a 85 ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 56 0a 85 ff e9 51 f7 ff ff e8 4c 0a 85 ff <0f> 0b e8 55 03 d0 02 e8 40 0a 85 ff 0f 0b e8 39 0a 85 ff 0f 0b e8 RSP: 0018:ffffc90000986ac0 EFLAGS: 00010293 RAX: ffffffff81eae174 RBX: 0000000000000001 RCX: ffff88811ef3bb40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc90000986bd0 R08: ffffffff81ead4ab R09: ffffed10217cc98a R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023deba79 R13: 0000000000000001 R14: 1ffff92000130d68 R15: ffff88811ef5d3c8 FS: 0000555556d74300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562dcad0f048 CR3: 000000011bca0000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400