r0 = shmget$private(0x0, 0x2000, 0x0, &(0x7f0000001000/0x2000)=nil)
shmat(r0, &(0x7f0000000000/0x4000)=nil, 0x4000)
r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000013c0)='numa_maps\x00')
preadv(r1, &(0x7f0000000040)=[{&(0x7f0000001400)=""/4072, 0xfe8}], 0x1, 0x0, 0x0)