r0 = shmget$private(0x0, 0xc00000, 0x0, &(0x7f0000400000/0xc00000)=nil)
r1 = shmat(r0, &(0x7f0000ffa000/0x4000)=nil, 0x6000)
shmctl$IPC_RMID(r0, 0x0)
shmdt(r1)
shmat(0xffffffffffffffff, &(0x7f0000dbd000/0x1000)=nil, 0x0)