loop2: detected capacity change from 0 to 1024 ================================================================== BUG: KASAN: slab-out-of-bounds in check_igot_inode+0x187/0x1b0 fs/ext4/inode.c:4656 Read of size 8 at addr ffff88802ffc9610 by task syz-executor.2/20230 CPU: 0 PID: 20230 Comm: syz-executor.2 Not tainted 6.6.0-rc1-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:7038 [inline] ext4_enable_quotas+0x521/0xba0 fs/ext4/super.c:7074 __ext4_fill_super fs/ext4/super.c:5568 [inline] ext4_fill_super+0x9ac9/0xad40 fs/ext4/super.c:5703 get_tree_bdev+0x3b5/0x650 fs/super.c:1577 vfs_get_tree+0x8c/0x370 fs/super.c:1750 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8cd527e1ea 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:00007f8cd5f77ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f8cd5f77f80 RCX: 00007f8cd527e1ea RDX: 00000000200005c0 RSI: 0000000020000600 RDI: 00007f8cd5f77f40 RBP: 00000000200005c0 R08: 00007f8cd5f77f80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000600 R13: 00007f8cd5f77f40 R14: 0000000000000586 R15: 0000000020000640 Allocated by task 30713: 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+0x21a/0x630 mm/slub.c:3509 alloc_inode_sb include/linux/fs.h:2909 [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_loadlog_and_replay+0x130/0x5e0 fs/ntfs3/fsntfs.c:297 ntfs_fill_super+0x265f/0x4330 fs/ntfs3/super.c:1222 get_tree_bdev+0x3b5/0x650 fs/super.c:1577 vfs_get_tree+0x8c/0x370 fs/super.c:1750 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 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 ntfs_loadlog_and_replay+0x1c1/0x5e0 fs/ntfs3/fsntfs.c:326 ntfs_fill_super+0x265f/0x4330 fs/ntfs3/super.c:1222 get_tree_bdev+0x3b5/0x650 fs/super.c:1577 vfs_get_tree+0x8c/0x370 fs/super.c:1750 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 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_extend_init+0x16c/0x560 fs/ntfs3/fsntfs.c:272 ntfs_fill_super+0x385e/0x4330 fs/ntfs3/super.c:1475 get_tree_bdev+0x3b5/0x650 fs/super.c:1577 vfs_get_tree+0x8c/0x370 fs/super.c:1750 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88802ffc8ec0 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 [ffff88802ffc8ec0, ffff88802ffc95a0) The buggy address belongs to the physical page: page:ffffea0000bff200 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802ffca4e0 pfn:0x2ffc8 head:ffffea0000bff200 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff8880263bd401 anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff8881426ab500 0000000000000000 0000000000000001 raw: ffff88802ffca4e0 000000008011000e 00000001ffffffff ffff8880263bd401 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 9957, tgid 9956 (syz-executor.0), ts 417852987341, free_ts 404416250374 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536 prep_new_page mm/page_alloc.c:1543 [inline] get_page_from_freelist+0xee0/0x2f20 mm/page_alloc.c:3170 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4426 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298 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+0x8be/0x1570 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+0x4e4/0x630 mm/slub.c:3509 alloc_inode_sb include/linux/fs.h:2909 [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+0x38e3/0x4330 fs/ntfs3/super.c:1500 get_tree_bdev+0x3b5/0x650 fs/super.c:1577 vfs_get_tree+0x8c/0x370 fs/super.c:1750 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3662 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1136 [inline] free_unref_page_prepare+0x476/0xa40 mm/page_alloc.c:2312 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2405 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x18b/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] __kmem_cache_alloc_node+0x19b/0x350 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1022 [inline] __kmalloc+0x4f/0x100 mm/slab_common.c:1036 kmalloc include/linux/slab.h:603 [inline] tomoyo_realpath_from_path+0xb9/0x710 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x271/0x450 security/tomoyo/file.c:822 security_inode_getattr+0xf1/0x150 security/security.c:2153 vfs_getattr fs/stat.c:206 [inline] vfs_fstat+0x4f/0xc0 fs/stat.c:231 vfs_fstatat+0x130/0x140 fs/stat.c:328 __do_sys_newfstatat+0x98/0x110 fs/stat.c:502 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff88802ffc9500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88802ffc9580: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc >ffff88802ffc9600: fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff88802ffc9680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88802ffc9700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== Quota error (device loop2): v2_read_header: Failed header read: expected=8 got=0 EXT4-fs warning (device loop2): ext4_enable_quotas:7078: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs (loop2): mount failed