r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='map_files\x00')
r1 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000080), 0x0)
copy_file_range(r1, 0x0, r0, 0x0, 0x0, 0x0)