================================================================== BUG: KASAN: null-ptr-deref in memcpy include/linux/string.h:376 [inline] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x38c/0x580 net/nfc/llcp_sock.c:532 Read of size 33 at addr (null) by task syz-executor.2/28813 CPU: 0 PID: 28813 Comm: syz-executor.2 Not tainted 4.14.230-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 kasan_report_error.cold+0x144/0x191 mm/kasan/report.c:349 kasan_report+0x6f/0x80 mm/kasan/report.c:409 memcpy+0x20/0x50 mm/kasan/kasan.c:302 memcpy include/linux/string.h:376 [inline] llcp_sock_getname+0x38c/0x580 net/nfc/llcp_sock.c:532 SYSC_getsockname net/socket.c:1683 [inline] SyS_getsockname+0xff/0x1c0 net/socket.c:1668 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x466459 RSP: 002b:00007f6f9722e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000033 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000020000080 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffed5b43bcf R14: 00007f6f9722e300 R15: 0000000000022000 ================================================================== tmpfs: Bad value 'within_XizeH' for mount option 'huge' tmpfs: Bad mount option hete;ܦNQzk&@'t6)](;Nap(]:Ql+Fg>K?T&Tcp7S$bN^sdꋸOzi6_ tmpfs: Bad value 'with[n_size%-ʼnfXHoӆKfoP^ ΄HXGbV!J' for mount option 'huge'