loop3: rw=0, want=1924, limit=1796 syz-executor.3: attempt to access beyond end of device loop3: rw=0, want=1926, limit=1796 syz-executor.3: attempt to access beyond end of device loop3: rw=0, want=1928, limit=1796 ===================================================== BUG: KMSAN: uninit-value in post_read_mst_fixup+0x671/0xbe0 fs/ntfs/mst.c:39 post_read_mst_fixup+0x671/0xbe0 fs/ntfs/mst.c:39 ntfs_end_buffer_async_read+0x105e/0x14c0 fs/ntfs/aops.c:133 end_bio_bh_io_sync+0x176/0x230 fs/buffer.c:3005 bio_endio+0xab7/0xb00 block/bio.c:1491 submit_bio_checks+0x4fb/0x2750 block/blk-core.c:833 blk_mq_get_request block/blk-mq.c:2589 [inline] blk_mq_submit_bio+0xe0a/0x4550 block/blk-mq.c:2633 __submit_bio+0x395/0xb80 block/blk-core.c:851 __submit_bio_noacct_mq block/blk-core.c:926 [inline] submit_bio_noacct+0xe29/0x1070 block/blk-core.c:952 submit_bio+0x4dc/0x760 block/blk-core.c:1013 submit_bh_wbc+0xd31/0xdc0 fs/buffer.c:3054 submit_bh+0x93/0xc0 fs/buffer.c:3060 ntfs_read_block fs/ntfs/aops.c:345 [inline] ntfs_readpage+0x393c/0x3cc0 fs/ntfs/aops.c:435 do_read_cache_page+0x1137/0x1640 mm/filemap.c:3466 read_cache_page+0xf3/0x110 mm/filemap.c:3567 read_mapping_page include/linux/pagemap.h:651 [inline] ntfs_map_page fs/ntfs/aops.h:75 [inline] check_mft_mirror+0x65a/0x30e0 fs/ntfs/super.c:1109 load_system_files+0x3bb/0x5030 fs/ntfs/super.c:1772 ntfs_fill_super+0x3878/0x4f40 fs/ntfs/super.c:2891 mount_bdev+0x628/0x920 fs/super.c:1370 ntfs_mount+0xc9/0xe0 fs/ntfs/super.c:3048 legacy_get_tree+0x163/0x2e0 fs/fs_context.c:610 vfs_get_tree+0xd8/0x5d0 fs/super.c:1500 do_new_mount+0x7b5/0x16f0 fs/namespace.c:2988 path_mount+0x106f/0x2960 fs/namespace.c:3318 do_mount fs/namespace.c:3331 [inline] __do_sys_mount fs/namespace.c:3539 [inline] __se_sys_mount+0x8eb/0xa10 fs/namespace.c:3516 __ia32_sys_mount+0x157/0x1b0 fs/namespace.c:3516 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline] __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Uninit was created at: __alloc_pages+0xbc7/0x10a0 mm/page_alloc.c:5409 alloc_pages+0x8a5/0xb80 folio_alloc+0x7b/0x180 mm/mempolicy.c:2201 filemap_alloc_folio mm/filemap.c:1036 [inline] __page_cache_alloc include/linux/pagemap.h:374 [inline] do_read_cache_page+0x798/0x1640 mm/filemap.c:3450 read_cache_page+0xf3/0x110 mm/filemap.c:3567 read_mapping_page include/linux/pagemap.h:651 [inline] ntfs_map_page fs/ntfs/aops.h:75 [inline] check_mft_mirror+0x65a/0x30e0 fs/ntfs/super.c:1109 load_system_files+0x3bb/0x5030 fs/ntfs/super.c:1772 ntfs_fill_super+0x3878/0x4f40 fs/ntfs/super.c:2891 mount_bdev+0x628/0x920 fs/super.c:1370 ntfs_mount+0xc9/0xe0 fs/ntfs/super.c:3048 legacy_get_tree+0x163/0x2e0 fs/fs_context.c:610 vfs_get_tree+0xd8/0x5d0 fs/super.c:1500 do_new_mount+0x7b5/0x16f0 fs/namespace.c:2988 path_mount+0x106f/0x2960 fs/namespace.c:3318 do_mount fs/namespace.c:3331 [inline] __do_sys_mount fs/namespace.c:3539 [inline] __se_sys_mount+0x8eb/0xa10 fs/namespace.c:3516 __ia32_sys_mount+0x157/0x1b0 fs/namespace.c:3516 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline] __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c CPU: 1 PID: 23957 Comm: syz-executor.3 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================