loop0: detected capacity change from 0 to 512 ================================================================== BUG: KASAN: slab-out-of-bounds in check_igot_inode+0x187/0x1b0 fs/ext4/inode.c:4656 Read of size 8 at addr ffff88808645c250 by task syz-executor.0/12453 CPU: 1 PID: 12453 Comm: syz-executor.0 Not tainted 6.6.0-rc2-next-20230921-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+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc4/0x620 mm/kasan/report.c:475 kasan_report+0xda/0x110 mm/kasan/report.c:588 check_igot_inode+0x187/0x1b0 fs/ext4/inode.c:4656 __ext4_iget+0x14fb/0x4300 fs/ext4/inode.c:4708 ext4_quota_enable fs/ext4/super.c:7045 [inline] ext4_enable_quotas+0x521/0xba0 fs/ext4/super.c:7081 __ext4_fill_super fs/ext4/super.c:5575 [inline] ext4_fill_super+0xa77d/0xaf10 fs/ext4/super.c:5710 get_tree_bdev+0x3b5/0x650 fs/super.c:1580 vfs_get_tree+0x8c/0x370 fs/super.c:1753 do_new_mount fs/namespace.c:3337 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3664 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount fs/namespace.c:3863 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc7c867e1ea 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:00007fc7c9451ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc7c9451f80 RCX: 00007fc7c867e1ea RDX: 00000000200004c0 RSI: 0000000020000500 RDI: 00007fc7c9451f40 RBP: 00000000200004c0 R08: 00007fc7c9451f80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000500 R13: 00007fc7c9451f40 R14: 00000000000004a6 R15: 0000000020000240 Allocated by task 7364: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3478 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc_lru+0x215/0x670 mm/slub.c:3509 alloc_inode_sb include/linux/fs.h:2869 [inline] ntfs_alloc_inode+0x25/0x70 fs/ntfs3/super.c:546 alloc_inode+0x5d/0x220 fs/inode.c:259 iget5_locked fs/inode.c:1269 [inline] iget5_locked+0x63/0xe0 fs/inode.c:1262 ntfs_iget5+0xd6/0x3960 fs/ntfs3/inode.c:525 ntfs_security_init+0xe5/0xac0 fs/ntfs3/fsntfs.c:1864 ntfs_fill_super+0x383c/0x43d0 fs/ntfs3/super.c:1468 get_tree_bdev+0x3b5/0x650 fs/super.c:1580 vfs_get_tree+0x8c/0x370 fs/super.c:1753 do_new_mount fs/namespace.c:3337 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3664 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount fs/namespace.c:3863 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd Last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492 __call_rcu_common.constprop.0+0x9a/0x790 kernel/rcu/tree.c:2653 destroy_inode+0x129/0x1b0 fs/inode.c:314 iput_final fs/inode.c:1775 [inline] iput.part.0+0x55e/0x7a0 fs/inode.c:1801 iput+0x5c/0x80 fs/inode.c:1791 ntfs3_put_sbi+0xa5/0x1e0 fs/ntfs3/super.c:583 generic_shutdown_super+0x161/0x3c0 fs/super.c:696 kill_block_super+0x3b/0x70 fs/super.c:1649 ntfs3_kill_sb+0x3f/0xf0 fs/ntfs3/super.c:1727 deactivate_locked_super+0xbc/0x1a0 fs/super.c:484 deactivate_super+0xde/0x100 fs/super.c:517 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1256 task_work_run+0x14d/0x240 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x215/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd Second to last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492 __call_rcu_common.constprop.0+0x9a/0x790 kernel/rcu/tree.c:2653 destroy_inode+0x129/0x1b0 fs/inode.c:314 iput_final fs/inode.c:1775 [inline] iput.part.0+0x55e/0x7a0 fs/inode.c:1801 iput+0x5c/0x80 fs/inode.c:1791 ntfs_fill_super+0x2691/0x43d0 fs/ntfs3/super.c:1226 get_tree_bdev+0x3b5/0x650 fs/super.c:1580 vfs_get_tree+0x8c/0x370 fs/super.c:1753 do_new_mount fs/namespace.c:3337 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3664 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount fs/namespace.c:3863 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88808645bb00 which belongs to the cache ntfs_inode_cache of size 1760 The buggy address is located 112 bytes to the right of allocated 1760-byte region [ffff88808645bb00, ffff88808645c1e0) The buggy address belongs to the physical page: page:ffffea0002191600 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88808645e740 pfn:0x86458 head:ffffea0002191600 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff88802766a701 anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff8881412c8dc0 0000000000000000 0000000000000001 raw: ffff88808645e740 0000000080110004 00000001ffffffff ffff88802766a701 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 5374, tgid 5368 (syz-executor.1), ts 421420369121, free_ts 418777484515 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1530 prep_new_page mm/page_alloc.c:1537 [inline] get_page_from_freelist+0xf17/0x2e50 mm/page_alloc.c:3200 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4456 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2305 alloc_slab_page mm/slub.c:1870 [inline] allocate_slab+0x251/0x380 mm/slub.c:2017 new_slab mm/slub.c:2070 [inline] ___slab_alloc+0x8c7/0x1580 mm/slub.c:3223 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322 __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc_lru+0x4e1/0x670 mm/slub.c:3509 alloc_inode_sb include/linux/fs.h:2869 [inline] ntfs_alloc_inode+0x25/0x70 fs/ntfs3/super.c:546 alloc_inode+0x5d/0x220 fs/inode.c:259 iget5_locked fs/inode.c:1269 [inline] iget5_locked+0x63/0xe0 fs/inode.c:1262 ntfs_iget5+0xd6/0x3960 fs/ntfs3/inode.c:525 ntfs_fill_super+0x205b/0x43d0 fs/ntfs3/super.c:1150 get_tree_bdev+0x3b5/0x650 fs/super.c:1580 vfs_get_tree+0x8c/0x370 fs/super.c:1753 do_new_mount fs/namespace.c:3337 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3664 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1130 [inline] free_unref_page_prepare+0x476/0xa40 mm/page_alloc.c:2342 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2435 __unfreeze_partials+0x21d/0x240 mm/slub.c:2655 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:292 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3478 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc+0x160/0x3a0 mm/slub.c:3502 getname_flags.part.0+0x50/0x4d0 fs/namei.c:140 getname_flags+0x9c/0xf0 include/linux/audit.h:321 user_path_at_empty+0x2c/0x60 fs/namei.c:2909 do_readlinkat+0xdd/0x2f0 fs/stat.c:490 __do_sys_readlink fs/stat.c:523 [inline] __se_sys_readlink fs/stat.c:520 [inline] __x64_sys_readlink+0x78/0xb0 fs/stat.c:520 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff88808645c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88808645c180: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff88808645c200: fc fc fc fc fc fc fc fc fc fc fc fc 00 00 00 00 ^ ffff88808645c280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88808645c300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================