loop1: detected capacity change from 0 to 4096 ntfs3: loop1: Different NTFS sector size (4096) and media sector size (512). ================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_check_attr_def+0x2e4/0x690 fs/ntfs3/fsntfs.c:2712 Read of size 4 at addr ffff88802930f120 by task syz-executor.1/6804 CPU: 1 PID: 6804 Comm: syz-executor.1 Not tainted 6.9.0-rc4-next-20240418-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 ntfs_check_attr_def+0x2e4/0x690 fs/ntfs3/fsntfs.c:2712 ntfs_fill_super+0x38ff/0x42e0 fs/ntfs3/super.c:1452 get_tree_bdev+0x3f7/0x570 fs/super.c:1615 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fad5247f5aa 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:00007fad5329def8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fad5329df80 RCX: 00007fad5247f5aa RDX: 000000002001f180 RSI: 000000002001f1c0 RDI: 00007fad5329df40 RBP: 000000002001f180 R08: 00007fad5329df80 R09: 0000000000000005 R10: 0000000000000005 R11: 0000000000000202 R12: 000000002001f1c0 R13: 00007fad5329df40 R14: 000000000001f1f3 R15: 0000000020000040 Allocated by task 6804: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:4078 [inline] __kmalloc_noprof+0x200/0x400 mm/slub.c:4091 kmalloc_noprof include/linux/slab.h:664 [inline] ntfs_fill_super+0x3898/0x42e0 fs/ntfs3/super.c:1440 get_tree_bdev+0x3f7/0x570 fs/super.c:1615 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff88802930f000 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 76 bytes to the right of allocated 212-byte region [ffff88802930f000, ffff88802930f0d4) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2930e head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff80000000040(head|node=0|zone=1|lastcpupid=0xfff) page_type: 0xffffefff(slab) raw: 00fff80000000040 ffff888015041b40 ffffea0000b8e400 dead000000000004 raw: 0000000000000000 0000000080100010 00000001ffffefff 0000000000000000 head: 00fff80000000040 ffff888015041b40 ffffea0000b8e400 dead000000000004 head: 0000000000000000 0000000080100010 00000001ffffefff 0000000000000000 head: 00fff80000000001 ffffea0000a4c381 ffffffffffffffff 0000000000000000 head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5103, tgid -550670557 (syz-executor.3), ts 5103, free_ts 63797439133 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1476 prep_new_page mm/page_alloc.c:1484 [inline] get_page_from_freelist+0x2ce2/0x2d90 mm/page_alloc.c:3446 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4704 __alloc_pages_node_noprof include/linux/gfp.h:244 [inline] alloc_pages_node_noprof include/linux/gfp.h:271 [inline] alloc_slab_page+0x5f/0x120 mm/slub.c:2259 allocate_slab+0x5a/0x2e0 mm/slub.c:2422 new_slab mm/slub.c:2475 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3624 __slab_alloc+0x58/0xa0 mm/slub.c:3714 __slab_alloc_node mm/slub.c:3767 [inline] slab_alloc_node mm/slub.c:3945 [inline] __do_kmalloc_node mm/slub.c:4077 [inline] __kmalloc_noprof+0x25e/0x400 mm/slub.c:4091 kmalloc_noprof include/linux/slab.h:664 [inline] kzalloc_noprof include/linux/slab.h:778 [inline] fib_create_info+0xa3f/0x2510 net/ipv4/fib_semantics.c:1459 fib_table_insert+0x1f6/0x1f30 net/ipv4/fib_trie.c:1237 fib_magic+0x3d8/0x620 net/ipv4/fib_frontend.c:1109 fib_add_ifaddr+0x14c/0x5e0 net/ipv4/fib_frontend.c:1131 fib_inetaddr_event+0x167/0x1f0 net/ipv4/fib_frontend.c:1445 notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93 blocking_notifier_call_chain+0x69/0x90 kernel/notifier.c:388 __inet_insert_ifa+0x9d4/0xc30 net/ipv4/devinet.c:556 page last free pid 24 tgid 24 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1096 [inline] free_unref_page+0xd22/0xea0 mm/page_alloc.c:2609 rcu_do_batch kernel/rcu/tree.c:2565 [inline] rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2839 __do_softirq+0x2c6/0x980 kernel/softirq.c:554 Memory state around the buggy address: ffff88802930f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88802930f080: 00 00 00 00 00 00 00 00 00 00 04 fc fc fc fc fc >ffff88802930f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88802930f180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88802930f200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================