================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066 Read of size 3504 at addr ffff88805d16cf80 by task syz.1.32/4467 CPU: 0 PID: 4467 Comm: syz.1.32 Not tainted 6.1.116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066 ntfs_sb_write_run+0x29c/0x810 fs/ntfs3/fsntfs.c:1117 ntfs_set_ea+0x11e6/0x1660 fs/ntfs3/xattr.c:499 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816 notify_change+0xce3/0xfc0 fs/attr.c:499 chmod_common+0x2a7/0x4b0 fs/open.c:606 do_fchmodat fs/open.c:645 [inline] __do_sys_fchmodat fs/open.c:658 [inline] __se_sys_fchmodat fs/open.c:655 [inline] __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f025f57e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f02602bc038 EFLAGS: 00000246 ORIG_RAX: 000000000000010c RAX: ffffffffffffffda RBX: 00007f025f736058 RCX: 00007f025f57e719 RDX: 0000000000000141 RSI: 0000000020000200 RDI: ffffffffffffff9c RBP: 00007f025f5f1616 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f025f736058 R15: 00007ffd8a8233c8 Allocated by task 4467: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:562 [inline] kzalloc include/linux/slab.h:693 [inline] ntfs_set_ea+0x6d7/0x1660 fs/ntfs3/xattr.c:401 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816 notify_change+0xce3/0xfc0 fs/attr.c:499 chmod_common+0x2a7/0x4b0 fs/open.c:606 do_fchmodat fs/open.c:645 [inline] __do_sys_fchmodat fs/open.c:658 [inline] __se_sys_fchmodat fs/open.c:655 [inline] __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff88805d16cf80 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff88805d16cf80, ffff88805d16cfa0) The buggy address belongs to the physical page: page:ffffea0001745b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5d16c flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888017c41500 raw: 0000000000000000 0000000080400040 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 3623, tgid 3623 (udevd), ts 83380194674, free_ts 83321203517 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4313 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5589 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:935 [inline] __kmalloc+0xa1/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:562 [inline] kzalloc include/linux/slab.h:693 [inline] tomoyo_encode2 security/tomoyo/realpath.c:45 [inline] tomoyo_encode+0x26b/0x530 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x594/0x5d0 security/tomoyo/realpath.c:283 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x240/0x4c0 security/tomoyo/file.c:771 security_file_open+0x5f/0xa0 security/security.c:1681 do_dentry_open+0x308/0x10f0 fs/open.c:869 do_open fs/namei.c:3626 [inline] path_openat+0x2644/0x2e60 fs/namei.c:3783 do_filp_open+0x230/0x480 fs/namei.c:3810 do_sys_openat2+0x13b/0x4f0 fs/open.c:1318 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1444 [inline] free_pcp_prepare mm/page_alloc.c:1494 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3369 free_unref_page_list+0x663/0x900 mm/page_alloc.c:3510 release_pages+0x2836/0x2b40 mm/swap.c:1055 tlb_batch_pages_flush mm/mmu_gather.c:59 [inline] tlb_flush_mmu_free mm/mmu_gather.c:254 [inline] tlb_flush_mmu+0xfc/0x210 mm/mmu_gather.c:261 tlb_finish_mmu+0xce/0x1f0 mm/mmu_gather.c:361 exit_mmap+0x3c3/0x9f0 mm/mmap.c:3239 __mmput+0x115/0x3c0 kernel/fork.c:1199 exec_mmap+0x4fa/0x5b0 fs/exec.c:1040 begin_new_exec+0xaf9/0x1dd0 fs/exec.c:1299 load_elf_binary+0x955/0x2720 fs/binfmt_elf.c:1002 search_binary_handler fs/exec.c:1741 [inline] exec_binprm fs/exec.c:1782 [inline] bprm_execve+0x96a/0x18a0 fs/exec.c:1851 do_execveat_common+0x580/0x720 fs/exec.c:1956 do_execve fs/exec.c:2030 [inline] __do_sys_execve fs/exec.c:2106 [inline] __se_sys_execve fs/exec.c:2101 [inline] __x64_sys_execve+0x8e/0xa0 fs/exec.c:2101 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Memory state around the buggy address: ffff88805d16ce80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc ffff88805d16cf00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc >ffff88805d16cf80: 00 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88805d16d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88805d16d080: 00 00 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 ==================================================================