seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f00000001c0)=[{0x6, 0x0, 0x0, 0x7ffc0000}]}) r0 = syz_open_procfs(0x0, &(0x7f0000000080)='ns\x00') readlinkat(r0, &(0x7f0000000000)='./mnt\x00', &(0x7f00000000c0)=""/253, 0xfd)