EXT4-fs (loop4): mounted filesystem without journal. Quota mode: writeback. ext4 filesystem being mounted at /root/syzkaller-testdir3095543575/syzkaller.0xIjoE/224/file1 supports timestamps until 2038 (0x7fffffff) ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4.h:3331! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4125 Comm: syz-executor.4 Not tainted 6.1.25-syzkaller-00332-g87b384408e48 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 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 ba 39 7f ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 a6 39 7f ff e9 51 f7 ff ff e8 9c 39 7f ff <0f> 0b e8 45 ec 0f 03 e8 90 39 7f ff 0f 0b e8 89 39 7f ff 0f 0b e8 RSP: 0018:ffffc9000d8be260 EFLAGS: 00010283 RAX: ffffffff81f475f4 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90004df8000 RSI: 0000000000000337 RDI: 0000000000000338 RBP: ffffc9000d8be370 R08: ffffffff81f4692b R09: ffffed102252b5fc R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11021d53675 R13: 0000000000000001 R14: 1ffff92001b17c5c R15: ffff88810ea9b3a8 FS: 00007f656dca4700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33827000 CR3: 000000011bbbf000 CR4: 00000000003506a0 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_new_meta_blocks+0x206/0x4f0 fs/ext4/balloc.c:700 ext4_ext_grow_indepth fs/ext4/extents.c:1329 [inline] ext4_ext_create_new_leaf fs/ext4/extents.c:1435 [inline] ext4_ext_insert_extent+0xf35/0x4e00 fs/ext4/extents.c:2102 ext4_split_extent_at+0x863/0x11f0 fs/ext4/extents.c:3254 ext4_split_extent+0x1bd/0x4e0 fs/ext4/extents.c:3355 ext4_split_convert_extents fs/ext4/extents.c:3714 [inline] ext4_ext_handle_unwritten_extents fs/ext4/extents.c:3876 [inline] ext4_ext_map_blocks+0x211e/0x71e0 fs/ext4/extents.c:4168 ext4_map_blocks+0xa42/0x1ce0 fs/ext4/inode.c:651 mpage_map_one_extent fs/ext4/inode.c:2421 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2474 [inline] ext4_writepages+0x1785/0x3fc0 fs/ext4/inode.c:2842 do_writepages+0x385/0x620 mm/page-writeback.c:2469 filemap_fdatawrite_wbc+0x153/0x1b0 mm/filemap.c:399 __filemap_fdatawrite_range mm/filemap.c:432 [inline] filemap_write_and_wait_range+0x1a4/0x290 mm/filemap.c:685 __iomap_dio_rw+0xb52/0x20b0 fs/iomap/direct-io.c:573 iomap_dio_rw+0x41/0x90 fs/iomap/direct-io.c:690 ext4_dio_read_iter fs/ext4/file.c:94 [inline] ext4_file_read_iter+0x375/0x470 fs/ext4/file.c:145 call_read_iter include/linux/fs.h:2206 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x771/0xad0 fs/read_write.c:470 ksys_read+0x199/0x2c0 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 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: 0033:0x7f656ce8c169 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:00007f656dca4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f656cfabf80 RCX: 00007f656ce8c169 RDX: 0000000000000026 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007f656cee7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff1c2ba06f R14: 00007f656dca4300 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 ba 39 7f ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 a6 39 7f ff e9 51 f7 ff ff e8 9c 39 7f ff <0f> 0b e8 45 ec 0f 03 e8 90 39 7f ff 0f 0b e8 89 39 7f ff 0f 0b e8 RSP: 0018:ffffc9000d8be260 EFLAGS: 00010283 RAX: ffffffff81f475f4 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90004df8000 RSI: 0000000000000337 RDI: 0000000000000338 RBP: ffffc9000d8be370 R08: ffffffff81f4692b R09: ffffed102252b5fc R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11021d53675 R13: 0000000000000001 R14: 1ffff92001b17c5c R15: ffff88810ea9b3a8 FS: 00007f656dca4700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555557299728 CR3: 000000011bbbf000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400