loop2: detected capacity change from 0 to 4096 ntfs3: loop2: Different NTFS' sector size (4096) and media sector size (512) ================================================================== BUG: KASAN: use-after-free in ntfs_iget5+0x153/0x38e0 fs/ntfs3/inode.c:526 Read of size 8 at addr ffff888073092080 by task syz.2.4887/15474 CPU: 1 PID: 15474 Comm: syz.2.4887 Not tainted 5.15.174-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+0x1e3/0x2d0 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+0x153/0x38e0 fs/ntfs3/inode.c:526 ntfs_fill_super+0x237d/0x4340 fs/ntfs3/super.c:1004 get_tree_bdev+0x3fe/0x620 fs/super.c:1325 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x2ba/0xb40 fs/namespace.c:3012 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3540 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f680dc5d4ba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f680bacbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f680bacbef0 RCX: 00007f680dc5d4ba RDX: 000000002001f180 RSI: 000000002001f1c0 RDI: 00007f680bacbeb0 RBP: 000000002001f180 R08: 00007f680bacbef0 R09: 0000000000000005 R10: 0000000000000005 R11: 0000000000000246 R12: 000000002001f1c0 R13: 00007f680bacbeb0 R14: 000000000001f1fc R15: 0000000020004340 Allocated by task 5896: 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 reiserfs_alloc_inode+0x19/0xb0 fs/reiserfs/super.c:642 alloc_inode fs/inode.c:236 [inline] iget5_locked+0x9c/0x260 fs/inode.c:1238 reiserfs_fill_super+0x1140/0x2690 fs/reiserfs/super.c:2057 mount_bdev+0x2c9/0x3f0 fs/super.c:1400 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x2ba/0xb40 fs/namespace.c:3012 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3540 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 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:3007 [inline] call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3087 destroy_inode fs/inode.c:291 [inline] evict+0x87d/0x930 fs/inode.c:637 reiserfs_fill_super+0x13c2/0x2690 fs/reiserfs/super.c:2082 mount_bdev+0x2c9/0x3f0 fs/super.c:1400 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x2ba/0xb40 fs/namespace.c:3012 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3540 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff888073091a80 which belongs to the cache reiser_inode_cache of size 1568 The buggy address is located 1536 bytes inside of 1568-byte region [ffff888073091a80, ffff8880730920a0) The buggy address belongs to the page: page:ffffea0001cc2400 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888073093500 pfn:0x73090 head:ffffea0001cc2400 order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff888024741601 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888146ac8dc0 raw: ffff888073093500 000000008013000b 00000001ffffffff ffff888024741601 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d20d0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 4465, ts 76011109003, free_ts 19839041044 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x3b78/0x3d40 mm/page_alloc.c:4192 __alloc_pages+0x272/0x700 mm/page_alloc.c:5465 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 reiserfs_alloc_inode+0x19/0xb0 fs/reiserfs/super.c:642 alloc_inode fs/inode.c:236 [inline] new_inode_pseudo+0x60/0x210 fs/inode.c:976 new_inode+0x25/0x1d0 fs/inode.c:1005 reiserfs_mkdir+0x1bc/0x8f0 fs/reiserfs/namei.c:815 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x348/0x730 fs/reiserfs/xattr.c:1012 reiserfs_fill_super+0x226a/0x2690 fs/reiserfs/super.c:2179 mount_bdev+0x2c9/0x3f0 fs/super.c:1400 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x2ba/0xb40 fs/namespace.c:3012 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3540 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:9384 destroy_args+0xfe/0x980 mm/debug_vm_pgtable.c:1018 debug_vm_pgtable+0x40d/0x470 mm/debug_vm_pgtable.c:1331 do_one_initcall+0x22b/0x7a0 init/main.c:1302 do_initcall_level+0x157/0x210 init/main.c:1375 do_initcalls+0x49/0x90 init/main.c:1391 kernel_init_freeable+0x425/0x5c0 init/main.c:1615 kernel_init+0x19/0x290 init/main.c:1506 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Memory state around the buggy address: ffff888073091f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888073092000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888073092080: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888073092100: fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 ffff888073092180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================