loop4: detected capacity change from 0 to 512 ================================================================== BUG: KASAN: slab-out-of-bounds in check_igot_inode+0x187/0x1b0 fs/ext4/inode.c:4622 Read of size 8 at addr ffff88804b78ff30 by task syz-executor.4/24468 CPU: 0 PID: 24468 Comm: syz-executor.4 Not tainted 6.5.0-rc1-syzkaller-00248-gb6e6cc1f78c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 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:4622 __ext4_iget+0x14fc/0x43b0 fs/ext4/inode.c:4674 __ext4_fill_super fs/ext4/super.c:5467 [inline] ext4_fill_super+0x64c9/0xaf30 fs/ext4/super.c:5696 get_tree_bdev+0x43e/0x7d0 fs/super.c:1318 vfs_get_tree+0x88/0x350 fs/super.c:1519 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: 0033:0x7f318ee7e22a 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:00007f318fc8fee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f318fc8ff80 RCX: 00007f318ee7e22a RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007f318fc8ff40 RBP: 0000000020000040 R08: 00007f318fc8ff80 R09: 0000000000004500 R10: 0000000000004500 R11: 0000000000000202 R12: 0000000020000080 R13: 00007f318fc8ff40 R14: 00000000000004d5 R15: 00000000200000c0 Allocated by task 24343: 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:186 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3470 [inline] slab_alloc mm/slub.c:3478 [inline] __kmem_cache_alloc_lru mm/slub.c:3485 [inline] kmem_cache_alloc_lru+0x21a/0x630 mm/slub.c:3501 alloc_inode_sb include/linux/fs.h:2729 [inline] ntfs_alloc_inode+0x25/0x70 fs/ntfs3/super.c:546 alloc_inode+0x5d/0x220 fs/inode.c:260 iget5_locked fs/inode.c:1285 [inline] iget5_locked+0x63/0xe0 fs/inode.c:1278 ntfs_iget5+0xd1/0x3830 fs/ntfs3/inode.c:523 ntfs_fill_super+0x3611/0x43b0 fs/ntfs3/super.c:1425 get_tree_bdev+0x43e/0x7d0 fs/super.c:1318 vfs_get_tree+0x88/0x350 fs/super.c:1519 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 Freed by task 24338: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x15e/0x1b0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:162 [inline] slab_free_hook mm/slub.c:1792 [inline] slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1818 slab_free mm/slub.c:3801 [inline] kmem_cache_free+0xf0/0x490 mm/slub.c:3823 i_callback+0x43/0x70 fs/inode.c:249 rcu_do_batch kernel/rcu/tree.c:2135 [inline] rcu_core+0x7fb/0x1bb0 kernel/rcu/tree.c:2399 __do_softirq+0x218/0x965 kernel/softirq.c:553 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:2649 destroy_inode+0x129/0x1b0 fs/inode.c:315 iput_final fs/inode.c:1791 [inline] iput.part.0+0x55e/0x7a0 fs/inode.c:1817 iput+0x5c/0x80 fs/inode.c:1807 ntfs_fill_super+0x3855/0x43b0 fs/ntfs3/super.c:1466 get_tree_bdev+0x43e/0x7d0 fs/super.c:1318 vfs_get_tree+0x88/0x350 fs/super.c:1519 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:2649 destroy_inode+0x129/0x1b0 fs/inode.c:315 iput_final fs/inode.c:1791 [inline] iput.part.0+0x55e/0x7a0 fs/inode.c:1817 iput+0x5c/0x80 fs/inode.c:1807 put_ntfs+0xed/0x330 fs/ntfs3/super.c:584 ntfs_put_super+0x17c/0x240 fs/ntfs3/super.c:630 generic_shutdown_super+0x158/0x480 fs/super.c:499 kill_block_super+0x64/0xb0 fs/super.c:1417 deactivate_locked_super+0x9a/0x170 fs/super.c:330 deactivate_super+0xde/0x100 fs/super.c:361 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:179 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+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88804b78f600 which belongs to the cache ntfs_inode_cache of size 1760 The buggy address is located 592 bytes to the right of allocated 1760-byte region [ffff88804b78f600, ffff88804b78fce0) The buggy address belongs to the physical page: page:ffffea00012de200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4b788 head:ffffea00012de200 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff888020fb9801 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000010200 ffff8881426cdb40 ffffea0000cfc800 dead000000000002 raw: 0000000000000000 0000000000110011 00000001ffffffff ffff888020fb9801 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 7547, tgid 7545 (syz-executor.0), ts 187392147247, free_ts 187138910241 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570 prep_new_page mm/page_alloc.c:1577 [inline] get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2279 alloc_slab_page mm/slub.c:1862 [inline] allocate_slab+0x24e/0x380 mm/slub.c:2009 new_slab mm/slub.c:2062 [inline] ___slab_alloc+0x8bc/0x1570 mm/slub.c:3215 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314 __slab_alloc_node mm/slub.c:3367 [inline] slab_alloc_node mm/slub.c:3460 [inline] slab_alloc mm/slub.c:3478 [inline] __kmem_cache_alloc_lru mm/slub.c:3485 [inline] kmem_cache_alloc_lru+0x4e4/0x630 mm/slub.c:3501 alloc_inode_sb include/linux/fs.h:2729 [inline] ntfs_alloc_inode+0x25/0x70 fs/ntfs3/super.c:546 alloc_inode+0x5d/0x220 fs/inode.c:260 iget5_locked fs/inode.c:1285 [inline] iget5_locked+0x63/0xe0 fs/inode.c:1278 ntfs_iget5+0xd1/0x3830 fs/ntfs3/inode.c:523 ntfs_fill_super+0x2b5c/0x43b0 fs/ntfs3/super.c:1314 get_tree_bdev+0x43e/0x7d0 fs/super.c:1318 vfs_get_tree+0x88/0x350 fs/super.c:1519 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:1161 [inline] free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2348 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2443 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:186 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3470 [inline] slab_alloc mm/slub.c:3478 [inline] __kmem_cache_alloc_lru mm/slub.c:3485 [inline] kmem_cache_alloc+0x172/0x3b0 mm/slub.c:3494 getname_flags.part.0+0x50/0x4d0 fs/namei.c:140 getname_flags+0x9c/0xf0 include/linux/audit.h:319 vfs_fstatat+0x77/0xb0 fs/stat.c:275 __do_sys_newfstatat+0x98/0x110 fs/stat.c:446 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: ffff88804b78fe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88804b78fe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88804b78ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88804b78ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88804b790000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================