================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066 Read of size 3504 at addr ffff888077092b80 by task syz.0.15/5011 CPU: 1 PID: 5011 Comm: syz.0.15 Not tainted 6.1.118-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066 ntfs_sb_write_run+0x29c/0x810 fs/ntfs3/fsntfs.c:1117 ntfs_set_ea+0x11e6/0x1660 fs/ntfs3/xattr.c:499 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816 notify_change+0xce3/0xfc0 fs/attr.c:499 chmod_common+0x2a7/0x4b0 fs/open.c:606 do_fchmodat fs/open.c:645 [inline] __do_sys_fchmodat fs/open.c:658 [inline] __se_sys_fchmodat fs/open.c:655 [inline] __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f413557e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4136419038 EFLAGS: 00000246 ORIG_RAX: 000000000000010c RAX: ffffffffffffffda RBX: 00007f4135736058 RCX: 00007f413557e719 RDX: 0000000000000141 RSI: 0000000020000200 RDI: ffffffffffffff9c RBP: 00007f41355f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f4135736058 R15: 00007fffa1c031d8 Allocated by task 5011: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:562 [inline] kzalloc include/linux/slab.h:693 [inline] ntfs_set_ea+0x6d7/0x1660 fs/ntfs3/xattr.c:401 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816 notify_change+0xce3/0xfc0 fs/attr.c:499 chmod_common+0x2a7/0x4b0 fs/open.c:606 do_fchmodat fs/open.c:645 [inline] __do_sys_fchmodat fs/open.c:658 [inline] __se_sys_fchmodat fs/open.c:655 [inline] __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff888077092b80 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff888077092b80, ffff888077092ba0) The buggy address belongs to the physical page: page:ffffea0001dc2480 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888077092300 pfn:0x77092 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea00017c4500 dead000000000004 ffff888017c41500 raw: ffff888077092300 0000000080400037 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 4330, tgid 4330 (syz-executor), ts 87179204069, free_ts 85410317472 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4313 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5589 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026 kmalloc include/linux/slab.h:557 [inline] kzalloc include/linux/slab.h:693 [inline] ref_tracker_alloc+0x13c/0x470 lib/ref_tracker.c:85 __netdev_tracker_alloc include/linux/netdevice.h:4021 [inline] netdev_hold include/linux/netdevice.h:4050 [inline] __netdev_adjacent_dev_insert+0x283/0x880 net/core/dev.c:7528 __netdev_adjacent_dev_link_lists net/core/dev.c:7611 [inline] __netdev_adjacent_dev_link_neighbour net/core/dev.c:7640 [inline] __netdev_upper_dev_link+0x4ba/0x750 net/core/dev.c:7700 netdev_upper_dev_link+0x9a/0xe0 net/core/dev.c:7746 macvlan_common_newlink+0x119d/0x18d0 drivers/net/macvlan.c:1517 rtnl_newlink_create net/core/rtnetlink.c:3419 [inline] __rtnl_newlink net/core/rtnetlink.c:3639 [inline] rtnl_newlink+0x14e3/0x2050 net/core/rtnetlink.c:3652 rtnetlink_rcv_msg+0x818/0xff0 net/core/rtnetlink.c:6150 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2508 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1444 [inline] free_pcp_prepare mm/page_alloc.c:1494 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3369 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3464 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] __kmem_cache_alloc_node+0x137/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:935 [inline] __kmalloc+0xa1/0x230 mm/slab_common.c:949 kmalloc_array include/linux/slab.h:609 [inline] memcg_list_lru_alloc+0x237/0xd20 mm/list_lru.c:487 memcg_slab_pre_alloc_hook mm/slab.h:494 [inline] slab_pre_alloc_hook+0x2a1/0x300 mm/slab.h:715 slab_alloc_node mm/slub.c:3318 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x4a/0x2d0 mm/slub.c:3429 alloc_inode_sb include/linux/fs.h:3245 [inline] shmem_alloc_inode+0x24/0x40 mm/shmem.c:3903 alloc_inode fs/inode.c:261 [inline] new_inode_pseudo+0x61/0x1d0 fs/inode.c:1059 new_inode+0x25/0x1d0 fs/inode.c:1087 shmem_get_inode+0x320/0xbd0 mm/shmem.c:2359 shmem_mknod+0x54/0x1b0 mm/shmem.c:2940 Memory state around the buggy address: ffff888077092a80: 00 00 00 00 fc fc fc fc 00 00 00 00 fc fc fc fc ffff888077092b00: fb fb fb fb fc fc fc fc 00 00 00 00 fc fc fc fc >ffff888077092b80: 00 00 04 fc fc fc fc fc 00 00 00 00 fc fc fc fc ^ ffff888077092c00: 00 00 00 00 fc fc fc fc 00 00 00 00 fc fc fc fc ffff888077092c80: 00 00 00 00 fc fc fc fc 00 00 00 00 fc fc fc fc ==================================================================