ntfs: volume version 3.1. ================================================================== BUG: KASAN: slab-out-of-bounds in instrument_atomic_read include/linux/instrumented.h:68 [inline] BUG: KASAN: slab-out-of-bounds in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] BUG: KASAN: slab-out-of-bounds in NInoAttr fs/ntfs/inode.h:200 [inline] BUG: KASAN: slab-out-of-bounds in ntfs_test_inode+0x7d/0x2d0 fs/ntfs/inode.c:55 Read of size 8 at addr ffff88805e1c7ec0 by task syz.3.2079/10669 CPU: 1 PID: 10669 Comm: syz.3.2079 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xa8/0x210 mm/kasan/report.c:468 kasan_report+0x117/0x150 mm/kasan/report.c:581 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x241/0x290 mm/kasan/generic.c:187 instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] NInoAttr fs/ntfs/inode.h:200 [inline] ntfs_test_inode+0x7d/0x2d0 fs/ntfs/inode.c:55 find_inode+0x19e/0x400 fs/inode.c:946 ilookup5_nowait fs/inode.c:1501 [inline] ilookup5+0xab/0x1e0 fs/inode.c:1530 iget5_locked+0x34/0x260 fs/inode.c:1311 ntfs_iget+0xbd/0x1a0 fs/ntfs/inode.c:168 load_and_check_logfile+0x3f/0xd0 fs/ntfs/super.c:1216 load_system_files+0x2f1b/0x4550 fs/ntfs/super.c:1949 ntfs_fill_super+0x1818/0x2a50 fs/ntfs/super.c:2900 mount_bdev+0x221/0x2d0 fs/super.c:1643 legacy_get_tree+0xea/0x180 fs/fs_context.c:662 vfs_get_tree+0x8c/0x280 fs/super.c:1764 do_new_mount+0x24b/0xa40 fs/namespace.c:3386 do_mount fs/namespace.c:3726 [inline] __do_sys_mount fs/namespace.c:3935 [inline] __se_sys_mount+0x2e7/0x3d0 fs/namespace.c:3912 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f9683f9bf4a Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f96821f5e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f96821f5ee0 RCX: 00007f9683f9bf4a RDX: 0000200000000000 RSI: 0000200000000040 RDI: 00007f96821f5ea0 RBP: 0000200000000000 R08: 00007f96821f5ee0 R09: 0000000000800808 R10: 0000000000800808 R11: 0000000000000246 R12: 0000200000000040 R13: 00007f96821f5ea0 R14: 000000000001ee90 R15: 0000200000002380 Allocated by task 6435: kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4e/0x70 mm/kasan/common.c:53 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x6e/0x4b0 mm/slab.h:767 slab_alloc_node mm/slub.c:3495 [inline] slab_alloc mm/slub.c:3503 [inline] __kmem_cache_alloc_lru mm/slub.c:3510 [inline] kmem_cache_alloc_lru+0x111/0x2d0 mm/slub.c:3526 xas_alloc lib/xarray.c:375 [inline] xas_create+0x10d8/0x1720 lib/xarray.c:677 xas_store+0xa6/0x19e0 lib/xarray.c:787 __xa_alloc+0x143/0x220 lib/xarray.c:1846 __xa_alloc_cyclic+0x91/0x2d0 lib/xarray.c:1885 xa_alloc_cyclic include/linux/xarray.h:977 [inline] simple_offset_add+0x130/0x1e0 fs/libfs.c:296 shmem_rename2+0x109/0x350 mm/shmem.c:3436 vfs_rename+0xba2/0xed0 fs/namei.c:4880 do_renameat2+0x8e9/0xce0 fs/namei.c:5033 __do_sys_rename fs/namei.c:5079 [inline] __se_sys_rename fs/namei.c:5077 [inline] __x64_sys_rename+0x86/0x90 fs/namei.c:5077 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Freed by task 5769: kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4e/0x70 mm/kasan/common.c:53 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1811 [inline] slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837 slab_free mm/slub.c:3830 [inline] kmem_cache_free+0xf8/0x270 mm/slub.c:3852 rcu_do_batch kernel/rcu/tree.c:2194 [inline] rcu_core+0xcfb/0x1770 kernel/rcu/tree.c:2467 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 Last potentially related work creation: kasan_save_stack+0x3e/0x60 mm/kasan/common.c:46 __kasan_record_aux_stack+0xaf/0xc0 mm/kasan/generic.c:492 __call_rcu_common kernel/rcu/tree.c:2721 [inline] call_rcu+0x153/0x950 kernel/rcu/tree.c:2837 xa_node_free lib/xarray.c:258 [inline] xas_delete_node lib/xarray.c:495 [inline] update_node lib/xarray.c:759 [inline] xas_store+0xe39/0x19e0 lib/xarray.c:844 __xa_erase lib/xarray.c:1495 [inline] xa_erase+0x68/0x100 lib/xarray.c:1516 simple_offset_remove+0x62/0x90 fs/libfs.c:331 shmem_unlink+0x1ad/0x2e0 mm/shmem.c:3357 vfs_unlink+0x389/0x600 fs/namei.c:4333 do_unlinkat+0x339/0x590 fs/namei.c:4399 __do_sys_unlink fs/namei.c:4447 [inline] __se_sys_unlink fs/namei.c:4445 [inline] __x64_sys_unlink+0x49/0x50 fs/namei.c:4445 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Second to last potentially related work creation: kasan_save_stack+0x3e/0x60 mm/kasan/common.c:46 __kasan_record_aux_stack+0xaf/0xc0 mm/kasan/generic.c:492 __call_rcu_common kernel/rcu/tree.c:2721 [inline] call_rcu+0x153/0x950 kernel/rcu/tree.c:2837 xa_node_free lib/xarray.c:258 [inline] xas_delete_node lib/xarray.c:495 [inline] update_node lib/xarray.c:759 [inline] xas_store+0xe39/0x19e0 lib/xarray.c:844 __xa_erase lib/xarray.c:1495 [inline] xa_erase+0x68/0x100 lib/xarray.c:1516 simple_offset_remove fs/libfs.c:331 [inline] simple_offset_rename+0x14a/0x250 fs/libfs.c:356 shmem_rename2+0x109/0x350 mm/shmem.c:3436 vfs_rename+0xba2/0xed0 fs/namei.c:4880 do_renameat2+0x8e9/0xce0 fs/namei.c:5033 __do_sys_rename fs/namei.c:5079 [inline] __se_sys_rename fs/namei.c:5077 [inline] __x64_sys_rename+0x86/0x90 fs/namei.c:5077 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff88805e1c7c80 which belongs to the cache radix_tree_node of size 576 The buggy address is located 0 bytes to the right of allocated 576-byte region [ffff88805e1c7c80, ffff88805e1c7ec0) The buggy address belongs to the physical page: page:ffffea0001787100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5e1c4 head:ffffea0001787100 order:2 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff88802eea8201 flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888017c4fdc0 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000170017 00000001ffffffff ffff88802eea8201 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Reclaimable, gfp_mask 0x152810(GFP_NOWAIT|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 6436, tgid 6436 (udevd), ts 351177519138, free_ts 278623330497 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1c1/0x200 mm/page_alloc.c:1554 prep_new_page mm/page_alloc.c:1561 [inline] get_page_from_freelist+0x1951/0x19e0 mm/page_alloc.c:3191 __alloc_pages+0x1f0/0x460 mm/page_alloc.c:4457 alloc_slab_page+0x5d/0x160 mm/slub.c:1881 allocate_slab mm/slub.c:2028 [inline] new_slab+0x87/0x2d0 mm/slub.c:2081 ___slab_alloc+0xc5d/0x12f0 mm/slub.c:3253 __slab_alloc mm/slub.c:3339 [inline] __slab_alloc_node mm/slub.c:3392 [inline] slab_alloc_node mm/slub.c:3485 [inline] slab_alloc mm/slub.c:3503 [inline] __kmem_cache_alloc_lru mm/slub.c:3510 [inline] kmem_cache_alloc_lru+0x1aa/0x2d0 mm/slub.c:3526 xas_alloc lib/xarray.c:375 [inline] xas_create+0x10d8/0x1720 lib/xarray.c:677 xas_store+0xa6/0x19e0 lib/xarray.c:787 __xa_alloc+0x143/0x220 lib/xarray.c:1846 __xa_alloc_cyclic+0x91/0x2d0 lib/xarray.c:1885 xa_alloc_cyclic include/linux/xarray.h:977 [inline] simple_offset_add+0x130/0x1e0 fs/libfs.c:296 shmem_mknod+0xf7/0x1d0 mm/shmem.c:3245 lookup_open fs/namei.c:3496 [inline] open_last_lookups fs/namei.c:3564 [inline] path_openat+0x12a0/0x3230 fs/namei.c:3794 do_filp_open+0x1f5/0x430 fs/namei.c:3824 do_sys_openat2+0x134/0x1d0 fs/open.c:1421 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1154 [inline] free_unref_page_prepare+0x7b2/0x8c0 mm/page_alloc.c:2336 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2429 __slab_free+0x35a/0x400 mm/slub.c:3736 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x75/0xd0 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:306 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x6e/0x4b0 mm/slab.h:767 slab_alloc_node mm/slub.c:3495 [inline] __kmem_cache_alloc_node+0x13a/0x250 mm/slub.c:3534 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc+0xa4/0x230 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x282/0x560 security/tomoyo/file.c:822 security_inode_getattr+0xd3/0x120 security/security.c:2153 vfs_getattr fs/stat.c:173 [inline] vfs_fstat fs/stat.c:198 [inline] __do_sys_newfstat fs/stat.c:473 [inline] __se_sys_newfstat fs/stat.c:470 [inline] __x64_sys_newfstat+0x12c/0x250 fs/stat.c:470 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Memory state around the buggy address: ffff88805e1c7d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88805e1c7e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88805e1c7e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff88805e1c7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88805e1c7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================