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[Fixed] The array may be sent out of bounds

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This commit is contained in:
gVisor bot 2021-12-09 22:51:18 +08:00
parent a7b3d928f9
commit c9001cc60c
1 changed files with 3 additions and 1 deletions
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4
listener/tun/dev/wintun/session_windows.go
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@ -86,5 +86,7 @@ func (session Session) AllocateSendPacket(packetSize int) (packet []byte, err er
}
func (session Session) SendPacket(packet []byte) {
syscall.Syscall(procWintunSendPacket.Addr(), 2, session.handle, uintptr(unsafe.Pointer(&packet[0])), 0)
if packet != nil && len(packet) > 0 {
syscall.Syscall(procWintunSendPacket.Addr(), 2, session.handle, uintptr(unsafe.Pointer(&packet[0])), 0)
}
}