loop2: detected capacity change from 0 to 4096 ntfs: volume version 3.1. ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:72 [inline] BUG: KASAN: use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] BUG: KASAN: use-after-free in NInoAttr fs/ntfs/inode.h:200 [inline] BUG: KASAN: use-after-free in ntfs_test_inode+0x7b/0x2d0 fs/ntfs/inode.c:55 Read of size 8 at addr ffff888097ce5b80 by task syz-executor.2/2541 CPU: 0 PID: 2541 Comm: syz-executor.2 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:306 print_report+0x107/0x220 mm/kasan/report.c:417 kasan_report+0x139/0x170 mm/kasan/report.c:517 kasan_check_range+0x2a7/0x2e0 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:72 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] NInoAttr fs/ntfs/inode.h:200 [inline] ntfs_test_inode+0x7b/0x2d0 fs/ntfs/inode.c:55 find_inode+0x19c/0x4d0 fs/inode.c:915 ilookup5_nowait fs/inode.c:1428 [inline] ilookup5+0x9d/0x1d0 fs/inode.c:1457 iget5_locked+0x33/0x270 fs/inode.c:1238 ntfs_iget+0xc0/0x190 fs/ntfs/inode.c:168 load_and_check_logfile+0x3f/0xd0 fs/ntfs/super.c:1208 load_system_files+0x3376/0x48d0 fs/ntfs/super.c:1941 ntfs_fill_super+0x19a9/0x2bf0 fs/ntfs/super.c:2892 mount_bdev+0x26c/0x3a0 fs/super.c:1359 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1489 do_new_mount+0x289/0xad0 fs/namespace.c:3145 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3674 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f105cc8d5da Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f105d95ef88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000001ee4b RCX: 00007f105cc8d5da RDX: 0000000020000000 RSI: 000000002001ee80 RDI: 00007f105d95efe0 RBP: 00007f105d95f020 R08: 00007f105d95f020 R09: 0000000000000400 R10: 0000000000000400 R11: 0000000000000202 R12: 0000000020000000 R13: 000000002001ee80 R14: 00007f105d95efe0 R15: 0000000020000040 Allocated by task 2244: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:325 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:761 [inline] slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc_lru+0x183/0x320 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:3116 [inline] reiserfs_alloc_inode+0x23/0xc0 fs/reiserfs/super.c:642 alloc_inode fs/inode.c:259 [inline] iget5_locked+0x9c/0x270 fs/inode.c:1241 reiserfs_fill_super+0x12e7/0x2620 fs/reiserfs/super.c:2053 mount_bdev+0x26c/0x3a0 fs/super.c:1359 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1489 do_new_mount+0x289/0xad0 fs/namespace.c:3145 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3674 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:488 __call_rcu_common kernel/rcu/tree.c:2755 [inline] call_rcu+0x163/0xab0 kernel/rcu/tree.c:2868 dispose_list fs/inode.c:697 [inline] evict_inodes+0x658/0x700 fs/inode.c:747 generic_shutdown_super+0x94/0x310 fs/super.c:480 kill_block_super+0x79/0xd0 fs/super.c:1386 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1291 task_work_run+0x243/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x63/0xcd Second to last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:488 __call_rcu_common kernel/rcu/tree.c:2755 [inline] call_rcu+0x163/0xab0 kernel/rcu/tree.c:2868 reiserfs_new_inode+0x76d/0x1d10 fs/reiserfs/inode.c:2156 reiserfs_mkdir+0x5aa/0x8f0 fs/reiserfs/namei.c:845 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:882 [inline] reiserfs_xattr_init+0x34b/0x730 fs/reiserfs/xattr.c:1005 reiserfs_fill_super+0x2206/0x2620 fs/reiserfs/super.c:2175 mount_bdev+0x26c/0x3a0 fs/super.c:1359 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1489 do_new_mount+0x289/0xad0 fs/namespace.c:3145 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3674 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888097ce5620 which belongs to the cache reiser_inode_cache of size 1568 The buggy address is located 1376 bytes inside of 1568-byte region [ffff888097ce5620, ffff888097ce5c40) The buggy address belongs to the physical page: page:ffffea00025f3800 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888097ce6360 pfn:0x97ce0 head:ffffea00025f3800 order:3 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0 memcg:ffff88807c703201 anon flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffff888145cfbdc0 0000000000000000 dead000000000001 raw: ffff888097ce6360 0000000080130010 00000001ffffffff ffff88807c703201 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 1464, tgid 1463 (syz-executor.4), ts 814617974307, free_ts 805575475580 prep_new_page mm/page_alloc.c:2531 [inline] get_page_from_freelist+0x72b/0x7a0 mm/page_alloc.c:4283 __alloc_pages+0x259/0x560 mm/page_alloc.c:5549 alloc_slab_page+0xbd/0x190 mm/slub.c:1851 allocate_slab+0x5e/0x3c0 mm/slub.c:1998 new_slab mm/slub.c:2051 [inline] ___slab_alloc+0x7f4/0xeb0 mm/slub.c:3193 __slab_alloc mm/slub.c:3292 [inline] __slab_alloc_node mm/slub.c:3345 [inline] slab_alloc_node mm/slub.c:3442 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc_lru+0x238/0x320 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:3116 [inline] reiserfs_alloc_inode+0x23/0xc0 fs/reiserfs/super.c:642 alloc_inode fs/inode.c:259 [inline] new_inode_pseudo+0x61/0x1d0 fs/inode.c:1018 new_inode+0x25/0x1d0 fs/inode.c:1046 reiserfs_mkdir+0x1bb/0x8f0 fs/reiserfs/namei.c:815 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:882 [inline] reiserfs_xattr_init+0x34b/0x730 fs/reiserfs/xattr.c:1005 reiserfs_fill_super+0x2206/0x2620 fs/reiserfs/super.c:2175 mount_bdev+0x26c/0x3a0 fs/super.c:1359 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1489 do_new_mount+0x289/0xad0 fs/namespace.c:3145 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1446 [inline] free_pcp_prepare+0x751/0x780 mm/page_alloc.c:1496 free_unref_page_prepare mm/page_alloc.c:3369 [inline] free_unref_page+0x19/0x4c0 mm/page_alloc.c:3464 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:302 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:761 [inline] slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x1b3/0x350 mm/slub.c:3476 getname_flags+0xb8/0x4e0 fs/namei.c:139 vfs_fstatat fs/stat.c:269 [inline] __do_sys_newfstatat fs/stat.c:440 [inline] __se_sys_newfstatat+0xe2/0x7b0 fs/stat.c:434 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff888097ce5a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888097ce5b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888097ce5b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888097ce5c00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff888097ce5c80: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ==================================================================