loop0: detected capacity change from 0 to 4096 ================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_iget5+0x154/0x3900 fs/ntfs3/inode.c:525 Read of size 8 at addr ffff888050917dd0 by task syz-executor.0/17998 CPU: 1 PID: 17998 Comm: syz-executor.0 Not tainted 5.15.131-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 ntfs_iget5+0x154/0x3900 fs/ntfs3/inode.c:525 ntfs_fill_super+0x1c7c/0x4450 fs/ntfs3/super.c:941 get_tree_bdev+0x3fe/0x620 fs/super.c:1312 vfs_get_tree+0x88/0x270 fs/super.c:1517 do_new_mount+0x28b/0xae0 fs/namespace.c:2994 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fbda1b4d1ea 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:00007fbda00ccee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fbda00ccf80 RCX: 00007fbda1b4d1ea RDX: 000000002001f740 RSI: 000000002001f780 RDI: 00007fbda00ccf40 RBP: 000000002001f740 R08: 00007fbda00ccf80 R09: 0000000002010000 R10: 0000000002010000 R11: 0000000000000202 R12: 000000002001f780 R13: 00007fbda00ccf40 R14: 000000000001f726 R15: 0000000020000100 Allocated by task 2965: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233 alloc_inode fs/inode.c:238 [inline] iget_locked+0x1fb/0x7f0 fs/inode.c:1244 kernfs_get_inode+0x4c/0x6b0 fs/kernfs/inode.c:250 kernfs_iop_lookup+0x1d7/0x2f0 fs/kernfs/dir.c:1131 __lookup_slow+0x275/0x3d0 fs/namei.c:1659 lookup_slow+0x53/0x70 fs/namei.c:1676 walk_component+0x48c/0x610 fs/namei.c:1972 link_path_walk+0x642/0xd90 path_openat+0x249/0x2f20 fs/namei.c:3668 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb Last potentially related work creation: kasan_save_stack+0x36/0x60 mm/kasan/common.c:38 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348 __call_rcu kernel/rcu/tree.c:2994 [inline] call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3074 __dentry_kill+0x436/0x650 fs/dcache.c:582 dentry_kill+0xbb/0x290 dput+0x1f1/0x420 fs/dcache.c:888 lookup_fast+0x662/0x7b0 fs/namei.c:1625 walk_component+0x115/0x610 fs/namei.c:1968 link_path_walk+0x642/0xd90 path_openat+0x249/0x2f20 fs/namei.c:3668 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb Second to last potentially related work creation: kasan_save_stack+0x36/0x60 mm/kasan/common.c:38 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348 __call_rcu kernel/rcu/tree.c:2994 [inline] call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3074 __dentry_kill+0x436/0x650 fs/dcache.c:582 shrink_dentry_list+0x398/0x6a0 fs/dcache.c:1176 shrink_dcache_parent+0xc9/0x480 d_invalidate+0x118/0x2d0 fs/dcache.c:1712 lookup_fast+0x658/0x7b0 fs/namei.c:1624 walk_component+0x115/0x610 fs/namei.c:1968 link_path_walk+0x642/0xd90 path_openat+0x249/0x2f20 fs/namei.c:3668 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff8880509177b0 which belongs to the cache inode_cache of size 1168 The buggy address is located 400 bytes to the right of 1168-byte region [ffff8880509177b0, ffff888050917c40) The buggy address belongs to the page: page:ffffea0001424500 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888050916370 pfn:0x50914 head:ffffea0001424500 order:2 compound_mapcount:0 compound_pincount:0 memcg:ffff8880722e6301 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 0000000100000001 ffff888011ddd780 raw: ffff888050916370 00000000800c000b 00000001ffffffff ffff8880722e6301 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Reclaimable, gfp_mask 0x1d20d0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 3534, ts 69583771798, free_ts 14542728276 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5421 alloc_slab_page mm/slub.c:1775 [inline] allocate_slab mm/slub.c:1912 [inline] new_slab+0xbb/0x4b0 mm/slub.c:1975 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008 __slab_alloc mm/slub.c:3095 [inline] slab_alloc_node mm/slub.c:3186 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x18e/0x280 mm/slub.c:3233 alloc_inode fs/inode.c:238 [inline] iget_locked+0x1fb/0x7f0 fs/inode.c:1244 kernfs_get_inode+0x4c/0x6b0 fs/kernfs/inode.c:250 kernfs_iop_lookup+0x1d7/0x2f0 fs/kernfs/dir.c:1131 __lookup_slow+0x275/0x3d0 fs/namei.c:1659 lookup_slow+0x53/0x70 fs/namei.c:1676 walk_component+0x48c/0x610 fs/namei.c:1972 link_path_walk+0x642/0xd90 path_openat+0x249/0x2f20 fs/namei.c:3668 do_filp_open+0x21c/0x460 fs/namei.c:3699 do_sys_openat2+0x13b/0x500 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1238 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+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 free_contig_range+0x95/0xf0 mm/page_alloc.c:9340 destroy_args+0xfe/0x97f mm/debug_vm_pgtable.c:1018 debug_vm_pgtable+0x40d/0x462 mm/debug_vm_pgtable.c:1331 do_one_initcall+0x22b/0x7a0 init/main.c:1295 do_initcall_level+0x157/0x207 init/main.c:1368 do_initcalls+0x49/0x86 init/main.c:1384 kernel_init_freeable+0x43c/0x5c5 init/main.c:1608 kernel_init+0x19/0x290 init/main.c:1499 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Memory state around the buggy address: ffff888050917c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888050917d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888050917d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888050917e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888050917e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================