ntfs: (device loop0): ntfs_ucstonls(): Unicode name contains characters that cannot be converted to character set maccenteuro.  You might want to try to use the mount option nls=utf8.
ntfs: (device loop0): ntfs_filldir(): Skipping unrepresentable inode 0x4.
==================================================================
BUG: KASAN: slab-out-of-bounds in ntfs_filldir fs/ntfs/dir.c:1021 [inline]
BUG: KASAN: slab-out-of-bounds in ntfs_readdir+0xe19/0x35e0 fs/ntfs/dir.c:1200
Read of size 1 at addr ffff8880247d8999 by task syz-executor/4866

CPU: 1 PID: 4866 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 print_address_description+0x60/0x2d0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xdf/0x130 mm/kasan/report.c:451
 ntfs_filldir fs/ntfs/dir.c:1021 [inline]
 ntfs_readdir+0xe19/0x35e0 fs/ntfs/dir.c:1200
 iterate_dir+0x218/0x560 fs/readdir.c:-1
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0xf2/0x270 fs/readdir.c:354
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8fca8f2a73
Code: c7 c0 e8 ff ff ff 64 c7 00 16 00 00 00 31 c0 eb 9e e8 81 9b fd ff 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 e8 ff ff ff f7 d8
RSP: 002b:00007ffcf00a7cf8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 00005555659eda80 RCX: 00007f8fca8f2a73
RDX: 0000000000008000 RSI: 00005555659edab0 RDI: 0000000000000006
RBP: 00005555659edab0 R08: 00007f8fcaacdca0 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000293 R12: 00005555659eda84
R13: ffffffffffffffe8 R14: 0000000000000016 R15: 00007ffcf00ab090
 </TASK>

Allocated by task 4866:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc+0xb5/0xf0 mm/kasan/common.c:522
 kmalloc include/linux/slab.h:612 [inline]
 ntfs_readdir+0x765/0x35e0 fs/ntfs/dir.c:1162
 iterate_dir+0x218/0x560 fs/readdir.c:-1
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0xf2/0x270 fs/readdir.c:354
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Last potentially related work creation:
 kasan_save_stack+0x35/0x60 mm/kasan/common.c:38
 kasan_record_aux_stack+0xb8/0x100 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:3011 [inline]
 call_rcu+0x189/0x950 kernel/rcu/tree.c:3091
 fib6_info_release include/net/ip6_fib.h:339 [inline]
 ip6_route_info_create+0x9c5/0x1210 net/ipv6/route.c:3850
 ip6_route_add+0x24/0x130 net/ipv6/route.c:3864
 addrconf_prefix_route+0x249/0x320 net/ipv6/addrconf.c:2446
 inet6_addr_add+0x4ff/0x9c0 net/ipv6/addrconf.c:3001
 inet6_rtm_newaddr+0x64c/0x8f0 net/ipv6/addrconf.c:4951
 rtnetlink_rcv_msg+0x844/0xf30 net/core/rtnetlink.c:5687
 netlink_rcv_skb+0x1f5/0x440 net/netlink/af_netlink.c:2507
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x774/0x920 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 __sys_sendto+0x46d/0x620 net/socket.c:2072
 __do_sys_sendto net/socket.c:2084 [inline]
 __se_sys_sendto net/socket.c:2080 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2080
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff8880247d8800
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 409 bytes inside of
 512-byte region [ffff8880247d8800, ffff8880247d8a00)
The buggy address belongs to the page:
page:ffffea000091f600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x247d8
head:ffffea000091f600 order:2 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea00016c0100 0000000200000002 ffff888016c41c80
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, ts 8298918772, free_ts 0
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x1bbd/0x1ca0 mm/page_alloc.c:4192
 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501
 alloc_page_interleave+0x24/0x1e0 mm/mempolicy.c:2031
 alloc_slab_page mm/slub.c:1780 [inline]
 allocate_slab mm/slub.c:1917 [inline]
 new_slab+0xc0/0x4b0 mm/slub.c:1980
 ___slab_alloc+0x80a/0xdd0 mm/slub.c:3013
 __slab_alloc mm/slub.c:3100 [inline]
 slab_alloc_node mm/slub.c:3191 [inline]
 slab_alloc mm/slub.c:3233 [inline]
 kmem_cache_alloc_trace+0x1a5/0x2a0 mm/slub.c:3250
 kmalloc include/linux/slab.h:607 [inline]
 kzalloc include/linux/slab.h:738 [inline]
 device_private_init drivers/base/core.c:3256 [inline]
 device_add+0xba/0xfb0 drivers/base/core.c:3306
 usb_add_gadget+0x17f/0x720 drivers/usb/gadget/udc/core.c:1346
 usb_add_gadget_udc_release+0x17d/0x1d0 drivers/usb/gadget/udc/core.c:1408
 dummy_udc_probe+0x6a1/0x7a0 drivers/usb/gadget/udc/dummy_hcd.c:1099
 platform_probe+0x137/0x1c0 drivers/base/platform.c:1391
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8880247d8880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880247d8900: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
>ffff8880247d8980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff8880247d8a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880247d8a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================