# https://syzkaller.appspot.com/bug?id=9a4be5caabca3f7751191a28eb8a0e68c2af9ac1
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{"threaded":true,"collide":true,"repeat":true,"procs":6,"sandbox":"none","fault_call":-1,"close_fds":false,"tmpdir":true,"segv":true}
socketpair(0x1f, 0x3, 0x0, 0x0)
setreuid(0x0, 0x0)
r0 = getgid()
r1 = semget$private(0x0, 0x4, 0x400)
semctl$GETPID(r1, 0x4, 0x4, 0x0)
semctl$IPC_SET(r1, 0x0, 0x1, 0x0)
setgid(r0)
fchownat(0xffffffffffffffff, 0x0, 0x0, r0, 0x400)
getgroups(0x2, &(0x7f0000000240)=[<r2=>r0, 0xffffffffffffffff])
getsockopt$SO_PEERCRED(0xffffffffffffffff, 0xffff, 0x11, 0x0, 0x0)
r3 = open(0x0, 0x60e, 0x0)
dup(r3)
r4 = getuid()
setreuid(0x0, r4)
r5 = getgid()
semget$private(0x0, 0x4, 0x400)
setgid(r5)
fchownat(r3, &(0x7f0000000080)='./file0/file0\x00', r4, r5, 0x400)
r6 = __clone(0x0, 0x0)
r7 = __clone(0x0, 0x0)
ptrace(0x9, r7, 0x0, 0x0)
wait4(r7, 0x0, 0x8, 0x0)
ptrace(0xc, r7, 0x0, 0x40)
ptrace(0x2, r7, 0x0, 0x0)
wait4(r6, 0x0, 0x8, 0x0)
ptrace(0xc, r6, &(0x7f0000000280), 0x40)
shmctl$IPC_SET(0x0, 0x1, &(0x7f0000000540)={{0x9, 0x0, r2, 0x0, r5, 0xae, 0x3}, 0x43de, 0x6, 0xffffffffffffffff, r6, 0x4, 0xa2, 0x3})
mincore(&(0x7f0000ffa000/0x3000)=nil, 0x3000, &(0x7f0000000180)=""/10)
__clone(0x0, 0x0)
__clone(0x2c7f, 0x0)
accept(0xffffffffffffffff, 0x0, 0x0)