================================================================== BUG: KASAN: use-after-free in sle64_to_cpup fs/ntfs/endian.h:46 [inline] BUG: KASAN: use-after-free in ntfs_lookup_inode_by_name+0xe86/0x2ca0 fs/ntfs/dir.c:292 Read of size 8 at addr ffff8880836bb560 by task syz-executor.4/582 CPU: 1 PID: 582 Comm: syz-executor.4 Not tainted 6.5.0-rc6-syzkaller-00117-g0e8860d2125f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x163/0x540 mm/kasan/report.c:475 kasan_report+0x175/0x1b0 mm/kasan/report.c:588 sle64_to_cpup fs/ntfs/endian.h:46 [inline] ntfs_lookup_inode_by_name+0xe86/0x2ca0 fs/ntfs/dir.c:292 check_windows_hibernation_status+0xf0/0x4c0 fs/ntfs/super.c:1282 load_system_files+0x35db/0x4840 fs/ntfs/super.c:1997 ntfs_fill_super+0x19b3/0x2bd0 fs/ntfs/super.c:2900 mount_bdev+0x276/0x3b0 fs/super.c:1391 legacy_get_tree+0xef/0x190 fs/fs_context.c:611 vfs_get_tree+0x8c/0x270 fs/super.c:1519 do_new_mount+0x28f/0xae0 fs/namespace.c:3335 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f477807e1ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f4778e42ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4778e42f80 RCX: 00007f477807e1ea RDX: 000000002001f7c0 RSI: 000000002001f640 RDI: 00007f4778e42f40 RBP: 000000002001f7c0 R08: 00007f4778e42f80 R09: 000000000000c002 R10: 000000000000c002 R11: 0000000000000202 R12: 000000002001f640 R13: 00007f4778e42f40 R14: 000000000001f62d R15: 000000002001f980 The buggy address belongs to the physical page: page:ffffea00020daec0 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x1 pfn:0x836bb flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffff7f(buddy) raw: 00fff00000000000 ffffea00020dd888 ffffea000227a588 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffff7f 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), pid 11572, tgid 5005 (syz-fuzzer), ts 2500233731263, free_ts 2520502146792 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1570 prep_new_page mm/page_alloc.c:1577 [inline] get_page_from_freelist+0x31e8/0x3370 mm/page_alloc.c:3221 __alloc_pages+0x255/0x670 mm/page_alloc.c:4477 __folio_alloc+0x13/0x30 mm/page_alloc.c:4509 vma_alloc_folio+0x48a/0x9a0 mm/mempolicy.c:2253 do_anonymous_page mm/memory.c:4104 [inline] do_pte_missing mm/memory.c:3662 [inline] handle_pte_fault mm/memory.c:4939 [inline] __handle_mm_fault mm/memory.c:5079 [inline] handle_mm_fault+0x20c7/0x5410 mm/memory.c:5233 do_user_addr_fault arch/x86/mm/fault.c:1343 [inline] handle_page_fault arch/x86/mm/fault.c:1486 [inline] exc_page_fault+0x3cf/0x7c0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1161 [inline] free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2348 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2489 release_pages+0x2193/0x2470 mm/swap.c:1042 tlb_batch_pages_flush mm/mmu_gather.c:97 [inline] tlb_flush_mmu_free mm/mmu_gather.c:292 [inline] tlb_flush_mmu+0x100/0x210 mm/mmu_gather.c:299 tlb_finish_mmu+0xd4/0x1f0 mm/mmu_gather.c:391 zap_page_range_single+0x453/0x510 mm/memory.c:1763 madvise_dontneed_single_vma mm/madvise.c:819 [inline] madvise_dontneed_free mm/madvise.c:900 [inline] madvise_vma_behavior mm/madvise.c:1039 [inline] madvise_walk_vmas mm/madvise.c:1264 [inline] do_madvise+0x23f2/0x47d0 mm/madvise.c:1444 __do_sys_madvise mm/madvise.c:1457 [inline] __se_sys_madvise mm/madvise.c:1455 [inline] __x64_sys_madvise+0xa5/0xb0 mm/madvise.c:1455 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff8880836bb400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880836bb480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff8880836bb500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff8880836bb580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880836bb600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================