loop0: detected capacity change from 0 to 512 EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. warning: `syz.0.0' uses wireless extensions which will stop working for Wi-Fi 7 hardware; use nl80211 loop0: detected capacity change from 512 to 64 syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=130, nr_sectors = 24 limit=64 EXT4-fs warning (device loop0): ext4_end_bio:346: I/O error 10 writing to inode 18 starting block 65) Buffer I/O error on device loop0, logical block 65 Buffer I/O error on device loop0, logical block 66 Buffer I/O error on device loop0, logical block 67 Buffer I/O error on device loop0, logical block 68 Buffer I/O error on device loop0, logical block 69 Buffer I/O error on device loop0, logical block 70 Buffer I/O error on device loop0, logical block 71 Buffer I/O error on device loop0, logical block 72 Buffer I/O error on device loop0, logical block 73 Buffer I/O error on device loop0, logical block 74 ------------[ cut here ]------------ kernel BUG at fs/ext4/mballoc.c:4687! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #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: 40 6e af 8e 4c 89 e6 48 89 ea e8 9b d1 9b 02 e9 be fc ff ff e8 c1 94 40 ff 90 0f 0b e8 b9 94 40 ff 90 0f 0b e8 b1 94 40 ff 90 <0f> 0b e8 a9 94 40 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc9000d19e348 EFLAGS: 00010287 RAX: ffffffff825edf3f RBX: 00000000ffffffd8 RCX: 0000000000100000 RDX: ffffc9000e6ea000 RSI: 00000000000080d1 RDI: 00000000000080d2 RBP: 0000000000000000 R08: ffffffff825edc3f R09: 1ffff11008762cda R10: dffffc0000000000 R11: ffffed1008762cdb R12: ffff888043b166e8 R13: 1ffff11008762b30 R14: 0000000000000034 R15: 1ffff11008762cdd FS: 00007f3233a856c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3233a3b000 CR3: 00000000401d0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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+0x108c/0x29e0 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:2702 filemap_fdatawrite_wbc mm/filemap.c:397 [inline] __filemap_fdatawrite_range mm/filemap.c:430 [inline] filemap_write_and_wait_range+0x283/0x3a0 mm/filemap.c:684 filemap_invalidate_pages mm/filemap.c:2746 [inline] kiocb_invalidate_pages+0xb1/0x140 mm/filemap.c:2765 __iomap_dio_rw+0xc04/0x25b0 fs/iomap/direct-io.c:672 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:792 ext4_dio_write_iter fs/ext4/file.c:575 [inline] ext4_file_write_iter+0x17aa/0x1c50 fs/ext4/file.c:715 aio_write+0x56b/0x7c0 fs/aio.c:1633 io_submit_one+0x8a7/0x18a0 fs/aio.c:2052 __do_sys_io_submit fs/aio.c:2111 [inline] __se_sys_io_submit+0x171/0x2e0 fs/aio.c:2081 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: 0033:0x7f3232b85d29 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:00007f3233a85038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f3232d75fa0 RCX: 00007f3232b85d29 RDX: 0000000020000540 RSI: 000000000000003b RDI: 00007f3233a3b000 RBP: 00007f3232c01aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3232d75fa0 R15: 00007ffdc91c2458 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_mb_use_inode_pa+0x690/0x700 fs/ext4/mballoc.c:4687 Code: 40 6e af 8e 4c 89 e6 48 89 ea e8 9b d1 9b 02 e9 be fc ff ff e8 c1 94 40 ff 90 0f 0b e8 b9 94 40 ff 90 0f 0b e8 b1 94 40 ff 90 <0f> 0b e8 a9 94 40 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc9000d19e348 EFLAGS: 00010287 RAX: ffffffff825edf3f RBX: 00000000ffffffd8 RCX: 0000000000100000 RDX: ffffc9000e6ea000 RSI: 00000000000080d1 RDI: 00000000000080d2 RBP: 0000000000000000 R08: ffffffff825edc3f R09: 1ffff11008762cda R10: dffffc0000000000 R11: ffffed1008762cdb R12: ffff888043b166e8 R13: 1ffff11008762b30 R14: 0000000000000034 R15: 1ffff11008762cdd FS: 00007f3233a856c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3233a3b000 CR3: 00000000401d0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400