ntfs3: loop3: Different NTFS sector size (2048) and media sector size (512). ntfs3: loop3: RAW NTFS volume: Filesystem size 8192.00 Gb > volume size 0.00 Gb. Mount in read-only. ntfs3: loop3: NTFS 8192.00 Gb is too big to use 32 bits per cluster. ================================================================== BUG: KASAN: use-after-free in memcmp+0x172/0x1c0 lib/string.c:681 Read of size 8 at addr ffff8880807b9002 by task syz-executor.3/6202 CPU: 0 PID: 6202 Comm: syz-executor.3 Not tainted 6.6.0-rc1-syzkaller-00196-g57d88e8a5974 #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 memcmp+0x172/0x1c0 lib/string.c:681 memcmp include/linux/fortify-string.h:728 [inline] ntfs_init_from_boot fs/ntfs3/super.c:858 [inline] ntfs_fill_super+0x6f2/0x4330 fs/ntfs3/super.c:1139 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: 0033:0x7f29cda7e1ea 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:00007f29ce802ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f29ce802f80 RCX: 00007f29cda7e1ea RDX: 000000002001f380 RSI: 0000000020000040 RDI: 00007f29ce802f40 RBP: 000000002001f380 R08: 00007f29ce802f80 R09: 0000000000000080 R10: 0000000000000080 R11: 0000000000000202 R12: 0000000020000040 R13: 00007f29ce802f40 R14: 000000000001f3a3 R15: 00000000200002c0 The buggy address belongs to the physical page: page:ffffea000201ee40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x807b9 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000000 ffffea0000fd4108 ffffea0002013e08 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 5073, tgid 5073 (syz-executor.5), ts 257716203057, free_ts 261299921778 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 __folio_alloc+0x16/0x40 mm/page_alloc.c:4458 vma_alloc_folio+0x156/0x890 mm/mempolicy.c:2259 wp_page_copy mm/memory.c:3074 [inline] do_wp_page+0x5bc/0x34c0 mm/memory.c:3449 handle_pte_fault mm/memory.c:4994 [inline] __handle_mm_fault+0x1d20/0x3e20 mm/memory.c:5119 handle_mm_fault+0x47a/0xa00 mm/memory.c:5284 do_user_addr_fault+0x30b/0x1010 arch/x86/mm/fault.c:1364 handle_page_fault arch/x86/mm/fault.c:1505 [inline] exc_page_fault+0x5c/0xd0 arch/x86/mm/fault.c:1561 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 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_list+0xe6/0xb30 mm/page_alloc.c:2451 release_pages+0x32a/0x14e0 mm/swap.c:1042 tlb_batch_pages_flush+0x9a/0x190 mm/mmu_gather.c:98 tlb_flush_mmu_free mm/mmu_gather.c:293 [inline] tlb_flush_mmu mm/mmu_gather.c:300 [inline] tlb_finish_mmu+0x14b/0x6f0 mm/mmu_gather.c:392 exit_mmap+0x38b/0xa60 mm/mmap.c:3223 __mmput+0x12a/0x4d0 kernel/fork.c:1349 mmput+0x62/0x70 kernel/fork.c:1371 exit_mm kernel/exit.c:567 [inline] do_exit+0x9b4/0x2a20 kernel/exit.c:861 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1033 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: ffff8880807b8f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880807b8f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880807b9000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff8880807b9080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880807b9100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== ================================================================== BUG: KASAN: use-after-free in memcmp+0x1a3/0x1c0 lib/string.c:692 Read of size 1 at addr ffff8880807b9002 by task syz-executor.3/6202 CPU: 1 PID: 6202 Comm: syz-executor.3 Tainted: G B 6.6.0-rc1-syzkaller-00196-g57d88e8a5974 #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 memcmp+0x1a3/0x1c0 lib/string.c:692 memcmp include/linux/fortify-string.h:728 [inline] ntfs_init_from_boot fs/ntfs3/super.c:858 [inline] ntfs_fill_super+0x6f2/0x4330 fs/ntfs3/super.c:1139 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: 0033:0x7f29cda7e1ea 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:00007f29ce802ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f29ce802f80 RCX: 00007f29cda7e1ea RDX: 000000002001f380 RSI: 0000000020000040 RDI: 00007f29ce802f40 RBP: 000000002001f380 R08: 00007f29ce802f80 R09: 0000000000000080 R10: 0000000000000080 R11: 0000000000000202 R12: 0000000020000040 R13: 00007f29ce802f40 R14: 000000000001f3a3 R15: 00000000200002c0 The buggy address belongs to the physical page: page:ffffea000201ee40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x807b9 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000000 ffffea0000fd4108 ffffea0002013e08 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 5073, tgid 5073 (syz-executor.5), ts 257716203057, free_ts 261299921778 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 __folio_alloc+0x16/0x40 mm/page_alloc.c:4458 vma_alloc_folio+0x156/0x890 mm/mempolicy.c:2259 wp_page_copy mm/memory.c:3074 [inline] do_wp_page+0x5bc/0x34c0 mm/memory.c:3449 handle_pte_fault mm/memory.c:4994 [inline] __handle_mm_fault+0x1d20/0x3e20 mm/memory.c:5119 handle_mm_fault+0x47a/0xa00 mm/memory.c:5284 do_user_addr_fault+0x30b/0x1010 arch/x86/mm/fault.c:1364 handle_page_fault arch/x86/mm/fault.c:1505 [inline] exc_page_fault+0x5c/0xd0 arch/x86/mm/fault.c:1561 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 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_list+0xe6/0xb30 mm/page_alloc.c:2451 release_pages+0x32a/0x14e0 mm/swap.c:1042 tlb_batch_pages_flush+0x9a/0x190 mm/mmu_gather.c:98 tlb_flush_mmu_free mm/mmu_gather.c:293 [inline] tlb_flush_mmu mm/mmu_gather.c:300 [inline] tlb_finish_mmu+0x14b/0x6f0 mm/mmu_gather.c:392 exit_mmap+0x38b/0xa60 mm/mmap.c:3223 __mmput+0x12a/0x4d0 kernel/fork.c:1349 mmput+0x62/0x70 kernel/fork.c:1371 exit_mm kernel/exit.c:567 [inline] do_exit+0x9b4/0x2a20 kernel/exit.c:861 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1033 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: ffff8880807b8f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880807b8f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880807b9000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff8880807b9080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8880807b9100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== ntfs3: loop3: Alternative boot signature is not NTFS.