loop0: detected capacity change from 0 to 8226 ================================================================== BUG: KASAN: use-after-free in run_unpack+0x84f/0xd00 fs/ntfs3/run.c:944 Read of size 1 at addr ffff88807a627100 by task syz-executor.0/25507 CPU: 1 PID: 25507 Comm: syz-executor.0 Not tainted 6.1.0-rc5-syzkaller-00015-g81e7cfa3a9eb #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+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report+0xcd/0x100 mm/kasan/report.c:495 run_unpack+0x84f/0xd00 fs/ntfs3/run.c:944 run_unpack_ex+0xcc/0x870 fs/ntfs3/run.c:1057 ntfs_read_mft fs/ntfs3/inode.c:368 [inline] ntfs_iget5+0x1cfa/0x36f0 fs/ntfs3/inode.c:501 ntfs_fill_super+0x2f4c/0x42a0 fs/ntfs3/super.c:1095 get_tree_bdev+0x400/0x620 fs/super.c:1324 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdbeb08cb6a 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:00007fdbebecaf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000bc0 RCX: 00007fdbeb08cb6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fdbebecafe0 RBP: 00007fdbebecb020 R08: 00007fdbebecb020 R09: 0000000020000000 R10: 0000000001000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fdbebecafe0 R15: 0000000020003580 Allocated by task 25507: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0xaf/0x1a0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] mi_init+0x72/0xe0 fs/ntfs3/record.c:105 ntfs_read_mft fs/ntfs3/inode.c:53 [inline] ntfs_iget5+0x309/0x36f0 fs/ntfs3/inode.c:501 ntfs_fill_super+0x29a7/0x42a0 fs/ntfs3/super.c:1071 get_tree_bdev+0x400/0x620 fs/super.c:1324 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 25507: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:511 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750 slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x71/0x110 mm/slub.c:3674 mi_clear fs/ntfs3/ntfs_fs.h:1102 [inline] ni_clear+0x32e/0x3e0 fs/ntfs3/frecord.c:133 evict+0x2a4/0x620 fs/inode.c:664 ntfs_fill_super+0x2eea/0x42a0 fs/ntfs3/super.c:1090 get_tree_bdev+0x400/0x620 fs/super.c:1324 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88807a627000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 256 bytes inside of 1024-byte region [ffff88807a627000, ffff88807a627400) The buggy address belongs to the physical page: page:ffffea0001e98800 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807a626000 pfn:0x7a620 head:ffffea0001e98800 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 0000000000000000 dead000000000001 ffff888012841dc0 raw: ffff88807a626000 000000008010000d 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 33, tgid 33 (kworker/u4:2), ts 243615838982, free_ts 240168506219 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4288 __alloc_pages+0x259/0x560 mm/page_alloc.c:5555 alloc_slab_page+0x70/0xf0 mm/slub.c:1794 allocate_slab+0x5e/0x4b0 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0x782/0xe20 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x252/0x310 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc+0x9e/0x1a0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] kzalloc include/linux/slab.h:689 [inline] ieee802_11_parse_elems_full+0xc4/0x1480 net/mac80211/util.c:1511 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2241 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2248 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline] ieee80211_ibss_rx_queued_mgmt+0x4c6/0x2c00 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1630 [inline] ieee80211_iface_work+0x773/0xcf0 net/mac80211/iface.c:1684 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1459 [inline] free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3483 free_slab mm/slub.c:2031 [inline] discard_slab mm/slub.c:2037 [inline] __unfreeze_partials+0x1ab/0x200 mm/slub.c:2586 put_cpu_partial+0x106/0x170 mm/slub.c:2662 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x169/0x180 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:737 [inline] slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x1cc/0x300 mm/slub.c:3422 kmem_cache_zalloc include/linux/slab.h:679 [inline] __alloc_file+0x26/0x230 fs/file_table.c:138 alloc_empty_file+0xa9/0x1b0 fs/file_table.c:187 alloc_file+0x58/0x5e0 fs/file_table.c:229 alloc_file_pseudo+0x24a/0x300 fs/file_table.c:272 sock_alloc_file+0xb4/0x240 net/socket.c:463 sock_map_fd net/socket.c:487 [inline] __sys_socket+0x196/0x360 net/socket.c:1644 __do_sys_socket net/socket.c:1649 [inline] __se_sys_socket net/socket.c:1647 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 Memory state around the buggy address: ffff88807a627000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88807a627080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88807a627100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88807a627180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88807a627200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================