EXT4-fs error (device loop5): ext4_dirty_inode:6045: inode #18: comm syz-executor.5: mark_inode_dirty error ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3331! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 786 Comm: syz-executor.5 Not tainted 6.1.25-syzkaller-00060-gb15c3a3df0a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 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 8a 18 7e ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 76 18 7e ff e9 51 f7 ff ff e8 6c 18 7e ff <0f> 0b e8 e5 41 fd 02 e8 60 18 7e ff 0f 0b e8 59 18 7e ff 0f 0b e8 RSP: 0018:ffffc9000beff1c0 EFLAGS: 00010246 RAX: ffffffff81f6dc64 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90001ea9000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000beff2d0 R08: ffffffff81f6cf9b R09: ffffed102173f731 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11022ceee79 R13: 0000000000000001 R14: 1ffff920017dfe48 R15: ffff8881167773c8 FS: 00007fa3cbfd86c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f541c578038 CR3: 0000000114e66000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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_alloc_file_blocks+0x3d5/0xcd0 fs/ext4/extents.c:4471 ext4_fallocate+0x942/0x1e90 fs/ext4/extents.c:4758 vfs_fallocate+0x492/0x570 fs/open.c:324 ksys_fallocate fs/open.c:347 [inline] __do_sys_fallocate fs/open.c:355 [inline] __se_sys_fallocate fs/open.c:353 [inline] __x64_sys_fallocate+0xc0/0x110 fs/open.c:353 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: 0033:0x7fa3cb27cae9 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:00007fa3cbfd80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007fa3cb39bf80 RCX: 00007fa3cb27cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fa3cb2c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa3cb39bf80 R15: 00007ffff5922a88 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 8a 18 7e ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 76 18 7e ff e9 51 f7 ff ff e8 6c 18 7e ff <0f> 0b e8 e5 41 fd 02 e8 60 18 7e ff 0f 0b e8 59 18 7e ff 0f 0b e8 RSP: 0018:ffffc9000beff1c0 EFLAGS: 00010246 RAX: ffffffff81f6dc64 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90001ea9000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000beff2d0 R08: ffffffff81f6cf9b R09: ffffed102173f731 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11022ceee79 R13: 0000000000000001 R14: 1ffff920017dfe48 R15: ffff8881167773c8 FS: 00007fa3cbfd86c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c4fa4ab528 CR3: 0000000114e66000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400