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+0xe86/0x2ca0 fs/ntfs/dir.c:292 Read of size 8 at addr ffff8880740de55a by task syz-executor425/4993 CPU: 0 PID: 4993 Comm: syz-executor425 Not tainted 6.4.0-rc1-syzkaller-00109-gcc3c44c9fda2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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:351 [inline] print_report+0x163/0x540 mm/kasan/report.c:462 kasan_report+0x176/0x1b0 mm/kasan/report.c:572 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+0x274/0x3a0 fs/super.c:1380 legacy_get_tree+0xef/0x190 fs/fs_context.c:610 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3039 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568 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: 0033:0x7f6dfa4cdd1a Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe14fc0d68 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00005555570e52c0 RCX: 00007f6dfa4cdd1a RDX: 000000002001ec80 RSI: 000000002001ecc0 RDI: 00007ffe14fc0db0 RBP: 0000000000000000 R08: 00007ffe14fc0df0 R09: 000000000001ec63 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 R13: 00007ffe14fc0df0 R14: 0000000000000003 R15: 00007ffe14fc0db0 The buggy address belongs to the physical page: page:ffffea0001d03780 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x740de flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000000 ffffea0001d172c8 ffffea0001d03748 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 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 4991, tgid 4991 (syz-executor425), ts 55765013121, free_ts 55892914215 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1731 prep_new_page mm/page_alloc.c:1738 [inline] get_page_from_freelist+0x321c/0x33a0 mm/page_alloc.c:3502 __alloc_pages+0x255/0x670 mm/page_alloc.c:4768 __folio_alloc+0x13/0x30 mm/page_alloc.c:4800 vma_alloc_folio+0x48a/0x9a0 mm/mempolicy.c:2240 shmem_alloc_folio mm/shmem.c:1579 [inline] shmem_alloc_and_acct_folio+0x5e7/0xe10 mm/shmem.c:1603 shmem_get_folio_gfp+0x120f/0x3470 mm/shmem.c:1948 shmem_get_folio mm/shmem.c:2079 [inline] shmem_write_begin+0x172/0x4e0 mm/shmem.c:2573 generic_perform_write+0x300/0x5e0 mm/filemap.c:3923 __generic_file_write_iter+0x17a/0x400 mm/filemap.c:4051 generic_file_write_iter+0xaf/0x310 mm/filemap.c:4083 call_write_iter include/linux/fs.h:1868 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x790/0xb20 fs/read_write.c:584 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 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 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1302 [inline] free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2564 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2705 release_pages+0x2193/0x2470 mm/swap.c:1042 __pagevec_release+0x84/0x100 mm/swap.c:1062 pagevec_release include/linux/pagevec.h:63 [inline] folio_batch_release include/linux/pagevec.h:132 [inline] shmem_undo_range+0x6af/0x1ba0 mm/shmem.c:954 shmem_truncate_range mm/shmem.c:1049 [inline] shmem_evict_inode+0x258/0x9f0 mm/shmem.c:1164 evict+0x2a4/0x620 fs/inode.c:665 __dentry_kill+0x436/0x650 fs/dcache.c:607 dentry_kill+0xbb/0x290 dput+0x1f3/0x420 fs/dcache.c:913 __fput+0x5e4/0x890 fs/file_table.c:329 task_work_run+0x24a/0x300 kernel/task_work.c:179 ptrace_notify+0x2cd/0x380 kernel/signal.c:2369 ptrace_report_syscall include/linux/ptrace.h:411 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline] syscall_exit_work kernel/entry/common.c:252 [inline] syscall_exit_to_user_mode_prepare kernel/entry/common.c:279 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:284 [inline] syscall_exit_to_user_mode+0x157/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff8880740de400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880740de480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff8880740de500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff8880740de580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880740de600: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================