ntfs: (device loop2): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel. ntfs: volume version 3.1. ================================================================== BUG: KASAN: use-after-free in ntfs_read_folio+0x9be/0x23e0 fs/ntfs/aops.c:483 Read of size 10 at addr ffff88803dbc2170 by task syz-executor.2/9006 CPU: 0 PID: 9006 Comm: syz-executor.2 Not tainted 6.7.0-rc7-syzkaller-00027-g505e701c0b2c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 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+0x142/0x170 mm/kasan/report.c:588 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 ntfs_read_folio+0x9be/0x23e0 fs/ntfs/aops.c:483 read_pages+0x5f0/0x830 mm/readahead.c:180 page_cache_ra_unbounded+0x68e/0x7c0 mm/readahead.c:269 page_cache_sync_readahead include/linux/pagemap.h:1283 [inline] filemap_get_pages+0x49c/0x2080 mm/filemap.c:2497 filemap_read+0x41b/0xec0 mm/filemap.c:2593 __kernel_read+0x425/0x8b0 fs/read_write.c:428 integrity_kernel_read+0xb0/0xf0 security/integrity/iint.c:221 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline] ima_calc_file_hash+0xad1/0x1b30 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x554/0xb30 security/integrity/ima/ima_api.c:290 process_measurement+0x1373/0x21c0 security/integrity/ima/ima_main.c:359 ima_file_check+0xf1/0x170 security/integrity/ima/ima_main.c:557 do_open fs/namei.c:3624 [inline] path_openat+0x2897/0x3290 fs/namei.c:3779 do_filp_open+0x234/0x490 fs/namei.c:3809 do_sys_openat2+0x13e/0x1d0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1463 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f56e5e7cce9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f56e6c2b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f56e5f9bf80 RCX: 00007f56e5e7cce9 RDX: 0000000000000000 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f56e5ec947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f56e5f9bf80 R15: 00007ffcee4cfe58 The buggy address belongs to the physical page: page:ffffea0000f6f080 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x3dbc2 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000000 dead000000000100 dead000000000122 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 0x100cca(GFP_HIGHUSER_MOVABLE), pid 8972, tgid 8971 (syz-executor.2), ts 334634165471, free_ts 335912418859 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x33ea/0x3570 mm/page_alloc.c:3312 __alloc_pages+0x255/0x680 mm/page_alloc.c:4568 alloc_pages_mpol+0x3de/0x640 mm/mempolicy.c:2133 shmem_alloc_folio mm/shmem.c:1630 [inline] shmem_alloc_and_add_folio+0x24f/0xde0 mm/shmem.c:1670 shmem_get_folio_gfp+0x7c3/0x1ee0 mm/shmem.c:2054 shmem_get_folio mm/shmem.c:2136 [inline] shmem_write_begin+0x170/0x4c0 mm/shmem.c:2719 generic_perform_write+0x31b/0x630 mm/filemap.c:3927 shmem_file_write_iter+0xfc/0x120 mm/shmem.c:2895 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x792/0xb20 fs/read_write.c:584 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x931/0xa60 mm/page_alloc.c:2347 free_unref_page_list+0x5a0/0x840 mm/page_alloc.c:2533 release_pages+0x2117/0x2400 mm/swap.c:1042 __folio_batch_release+0x84/0x100 mm/swap.c:1062 folio_batch_release include/linux/pagevec.h:83 [inline] shmem_undo_range+0x6b5/0x1da0 mm/shmem.c:1004 shmem_truncate_range mm/shmem.c:1113 [inline] shmem_evict_inode+0x29b/0xa60 mm/shmem.c:1241 evict+0x2a4/0x630 fs/inode.c:666 __dentry_kill+0x436/0x660 fs/dcache.c:607 dentry_kill+0xbb/0x290 dput+0x21e/0x470 fs/dcache.c:913 __fput+0x60b/0x9e0 fs/file_table.c:402 task_work_run+0x24a/0x300 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296 do_syscall_64+0x52/0x110 arch/x86/entry/common.c:89 Memory state around the buggy address: ffff88803dbc2000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88803dbc2080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88803dbc2100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88803dbc2180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88803dbc2200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================