r0 = syz_io_uring_setup(0x612a, &(0x7f0000000400), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffe000/0x1000)=nil, &(0x7f0000000040), &(0x7f0000000000)) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r1, &(0x7f0000000540)={0xa, 0x4e23, 0x0, @ipv4={'\x00', '\xff\xff', @empty}}, 0x1c) connect$inet6(r1, &(0x7f0000000040)={0xa, 0x4e23, 0x0, @empty}, 0x1c) sendmmsg$inet6(r1, &(0x7f0000000480)=[{{0x0, 0x0, &(0x7f0000000380)=[{&(0x7f00000009c0)="bf", 0x1}], 0x1}}, {{0x0, 0x0, &(0x7f0000000100)=[{&(0x7f0000000200)="82", 0x1}], 0x1}}], 0x2, 0x4044005) dup2(r0, r1)