syz.0.0 (5325) used greatest stack depth: 10896 bytes left loop0: detected capacity change from 0 to 512 EXT4-fs: Ignoring removed i_version option EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2863: Unable to expand inode 15. Delete some EAs or run e2fsck. EXT4-fs (loop0): 1 truncate cleaned up EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. ------------[ cut here ]------------ kernel BUG at fs/ext4/mballoc.c:4687! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.14.0-rc4-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:ext4_mb_use_inode_pa+0x690/0x700 fs/ext4/mballoc.c:4687 Code: c0 b4 cf 8e 4c 89 e6 48 89 ea e8 cb 5c aa 02 e9 be fc ff ff e8 71 37 3e ff 90 0f 0b e8 69 37 3e ff 90 0f 0b e8 61 37 3e ff 90 <0f> 0b e8 59 37 3e ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc900019868a8 EFLAGS: 00010293 RAX: ffffffff8283869f RBX: 00000000fffffffe RCX: ffff888000782440 RDX: 0000000000000000 RSI: 0000000000000041 RDI: 000000000000003f RBP: 0000000000000000 R08: ffffffff8283839f R09: 1ffff110087de866 R10: dffffc0000000000 R11: ffffed10087de867 R12: ffff888043ef4348 R13: 1ffff110087de622 R14: 0000000000000041 R15: 1ffff110087de869 FS: 00007f54c26326c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000400000009000 CR3: 000000003b5b2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000010602 Call Trace: ext4_mb_use_preallocated+0x680/0x1420 fs/ext4/mballoc.c:4904 ext4_mb_new_blocks+0x6ef/0x4e00 fs/ext4/mballoc.c:6208 ext4_alloc_branch fs/ext4/indirect.c:340 [inline] ext4_ind_map_blocks+0x10c0/0x29f0 fs/ext4/indirect.c:635 ext4_map_create_blocks fs/ext4/inode.c:518 [inline] ext4_map_blocks+0x85d/0x1990 fs/ext4/inode.c:702 mpage_map_one_extent fs/ext4/inode.c:2219 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2272 [inline] ext4_do_writepages+0x15ac/0x3df0 fs/ext4/inode.c:2735 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824 do_writepages+0x35f/0x880 mm/page-writeback.c:2687 filemap_fdatawrite_wbc mm/filemap.c:389 [inline] __filemap_fdatawrite_range mm/filemap.c:422 [inline] file_write_and_wait_range+0x2a3/0x3c0 mm/filemap.c:797 generic_buffers_fsync_noflush+0x71/0x180 fs/buffer.c:600 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline] ext4_sync_file+0x40a/0xb90 fs/ext4/fsync.c:151 generic_write_sync include/linux/fs.h:2970 [inline] ext4_buffered_write_iter+0x2bf/0x390 fs/ext4/file.c:305 ext4_file_write_iter+0x88f/0x1cd0 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xacf/0xd10 fs/read_write.c:679 ksys_pwrite64 fs/read_write.c:786 [inline] __do_sys_pwrite64 fs/read_write.c:794 [inline] __se_sys_pwrite64 fs/read_write.c:791 [inline] __x64_sys_pwrite64+0x1ac/0x240 fs/read_write.c:791 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f54c178d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f54c2632038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f54c19a5fa0 RCX: 00007f54c178d169 RDX: 000000000000fdef RSI: 0000400000000140 RDI: 0000000000000006 RBP: 00007f54c180e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fecc R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f54c19a5fa0 R15: 00007ffca1b13858 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_mb_use_inode_pa+0x690/0x700 fs/ext4/mballoc.c:4687 Code: c0 b4 cf 8e 4c 89 e6 48 89 ea e8 cb 5c aa 02 e9 be fc ff ff e8 71 37 3e ff 90 0f 0b e8 69 37 3e ff 90 0f 0b e8 61 37 3e ff 90 <0f> 0b e8 59 37 3e ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc900019868a8 EFLAGS: 00010293 RAX: ffffffff8283869f RBX: 00000000fffffffe RCX: ffff888000782440 RDX: 0000000000000000 RSI: 0000000000000041 RDI: 000000000000003f RBP: 0000000000000000 R08: ffffffff8283839f R09: 1ffff110087de866 R10: dffffc0000000000 R11: ffffed10087de867 R12: ffff888043ef4348 R13: 1ffff110087de622 R14: 0000000000000041 R15: 1ffff110087de869 FS: 00007f54c26326c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000400000009000 CR3: 000000003b5b2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000010602