loop0: detected capacity change from 0 to 4119 ntfs3: loop0: Different NTFS' sector size (2048) and media sector size (512) ================================================================== BUG: KASAN: use-after-free in run_unpack+0x8b7/0x970 fs/ntfs3/run.c:944 Read of size 1 at addr ffff888017772f02 by task syz-executor142/3607 CPU: 0 PID: 3607 Comm: syz-executor142 Not tainted 6.0.0-rc3-next-20220901-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:317 [inline] print_report.cold+0x2ba/0x719 mm/kasan/report.c:433 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495 run_unpack+0x8b7/0x970 fs/ntfs3/run.c:944 run_unpack_ex+0xb0/0x7c0 fs/ntfs3/run.c:1057 ntfs_read_mft fs/ntfs3/inode.c:368 [inline] ntfs_iget5+0xc20/0x3280 fs/ntfs3/inode.c:501 ntfs_loadlog_and_replay+0x124/0x5d0 fs/ntfs3/fsntfs.c:272 ntfs_fill_super+0x1eff/0x37f0 fs/ntfs3/super.c:1018 get_tree_bdev+0x440/0x760 fs/super.c:1323 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa277d03b7a Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 d8 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffded869598 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffded8695f0 RCX: 00007fa277d03b7a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffded8695b0 RBP: 00007ffded8695b0 R08: 00007ffded8695f0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 0000000020000338 R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000000d Allocated by task 3496: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:437 [inline] ____kasan_kmalloc mm/kasan/common.c:516 [inline] ____kasan_kmalloc mm/kasan/common.c:475 [inline] __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:525 kasan_kmalloc include/linux/kasan.h:234 [inline] __do_kmalloc_node mm/slab_common.c:930 [inline] __kmalloc+0x54/0xc0 mm/slab_common.c:943 kmalloc include/linux/slab.h:564 [inline] tomoyo_realpath_from_path+0xbf/0x600 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1345 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x16a/0x390 fs/stat.c:232 vfs_fstatat+0x8c/0xb0 fs/stat.c:255 __do_sys_newfstatat+0x91/0x110 fs/stat.c:425 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 3496: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:367 [inline] ____kasan_slab_free+0x166/0x1c0 mm/kasan/common.c:329 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1651 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1677 slab_free mm/slub.c:3580 [inline] __kmem_cache_free+0xab/0x3b0 mm/slub.c:3593 tomoyo_realpath_from_path+0x18c/0x600 security/tomoyo/realpath.c:286 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1345 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x16a/0x390 fs/stat.c:232 vfs_fstatat+0x8c/0xb0 fs/stat.c:255 __do_sys_newfstatat+0x91/0x110 fs/stat.c:425 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888017772000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 3842 bytes inside of 4096-byte region [ffff888017772000, ffff888017773000) The buggy address belongs to the physical page: page:ffffea00005ddc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17770 head:ffffea00005ddc00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888011842140 raw: 0000000000000000 0000000000040004 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 2681847427, free_ts 0 prep_new_page mm/page_alloc.c:2534 [inline] get_page_from_freelist+0x109b/0x2ce0 mm/page_alloc.c:4284 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5542 alloc_page_interleave+0x1e/0x200 mm/mempolicy.c:2113 alloc_pages+0x22f/0x270 mm/mempolicy.c:2275 alloc_slab_page mm/slub.c:1721 [inline] allocate_slab+0x228/0x370 mm/slub.c:1866 new_slab mm/slub.c:1919 [inline] ___slab_alloc+0xad0/0x1440 mm/slub.c:3100 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3198 slab_alloc_node mm/slub.c:3283 [inline] __kmem_cache_alloc_node+0x18a/0x3d0 mm/slub.c:3356 kmalloc_trace+0x22/0x60 mm/slab_common.c:1010 kmalloc include/linux/slab.h:559 [inline] kzalloc include/linux/slab.h:695 [inline] kobject_uevent_env+0x230/0x1640 lib/kobject_uevent.c:524 acpi_device_add_finalize drivers/acpi/scan.c:1804 [inline] acpi_add_single_object+0x9be/0x1b00 drivers/acpi/scan.c:1862 acpi_bus_check_add+0x1a4/0x5c0 drivers/acpi/scan.c:2084 acpi_ns_walk_namespace+0x24c/0x42e drivers/acpi/acpica/nswalk.c:240 acpi_walk_namespace drivers/acpi/acpica/nsxfeval.c:606 [inline] acpi_walk_namespace+0xee/0x127 drivers/acpi/acpica/nsxfeval.c:554 acpi_bus_scan+0x171/0x1c0 drivers/acpi/scan.c:2414 acpi_scan_init+0x2f3/0x692 drivers/acpi/scan.c:2591 page_owner free stack trace missing Memory state around the buggy address: ffff888017772e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888017772e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888017772f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888017772f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888017773000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================