loop0: detected capacity change from 0 to 4096 ntfs: volume version 3.1. ================================================================== 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+0xde5/0x3100 fs/ntfs/dir.c:292 Read of size 8 at addr ffff88806de8a55a by task syz-executor.0/4538 CPU: 1 PID: 4538 Comm: syz-executor.0 Not tainted 5.15.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Call Trace: dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106 print_address_description+0x60/0x2d0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xdf/0x130 mm/kasan/report.c:451 sle64_to_cpup fs/ntfs/endian.h:46 [inline] ntfs_lookup_inode_by_name+0xde5/0x3100 fs/ntfs/dir.c:292 check_windows_hibernation_status+0xe0/0x670 fs/ntfs/super.c:1274 load_system_files+0x3cc5/0x5560 fs/ntfs/super.c:1989 ntfs_fill_super+0x19e0/0x2c90 fs/ntfs/super.c:2894 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3013 do_mount fs/namespace.c:3356 [inline] __do_sys_mount fs/namespace.c:3564 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3541 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fea5c1d005a 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:00007fea5b54fee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fea5b54ff80 RCX: 00007fea5c1d005a RDX: 000000002001ec80 RSI: 000000002001ecc0 RDI: 00007fea5b54ff40 RBP: 000000002001ec80 R08: 00007fea5b54ff80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000002001ecc0 R13: 00007fea5b54ff40 R14: 000000000001ec6a R15: 000000002001ed00 The buggy address belongs to the page: page:ffffea0001b7a280 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x6de8a flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 ffffea0001b7a2c8 ffffea0001b7a248 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 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 0x1100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), pid 4538, ts 84133135080, free_ts 84160446746 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192 __alloc_pages+0x1e1/0x470 mm/page_alloc.c:5466 alloc_pages_vma+0x393/0x7c0 mm/mempolicy.c:2146 do_anonymous_page mm/memory.c:3838 [inline] handle_pte_fault mm/memory.c:4648 [inline] __handle_mm_fault mm/memory.c:4785 [inline] handle_mm_fault+0x2382/0x43c0 mm/memory.c:4883 do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357 handle_page_fault arch/x86/mm/fault.c:1445 [inline] exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317 free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433 release_pages+0x184b/0x1bb0 mm/swap.c:963 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu mm/mmu_gather.c:247 [inline] tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338 unmap_region+0x315/0x360 mm/mmap.c:2657 __do_munmap+0x9d3/0xdc0 mm/mmap.c:2887 __vm_munmap+0x137/0x230 mm/mmap.c:2940 __do_sys_munmap mm/mmap.c:2966 [inline] __se_sys_munmap mm/mmap.c:2962 [inline] __x64_sys_munmap+0x67/0x70 mm/mmap.c:2962 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Memory state around the buggy address: ffff88806de8a400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88806de8a480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88806de8a500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88806de8a580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88806de8a600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================