X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Fsyscalls.c;h=5774dbe57e84e09b48eb2da380fc7430b458b31e;hb=d1f16adf5f2e94e836ea6658186a6ff6d94f54d8;hp=facc263cc13e7bb4f0a67e1ab0ca75751e1d0598;hpb=022489d90d45db122801e75f493b3846724427e8;p=tpg%2Facess2.git

diff --git a/Kernel/syscalls.c b/Kernel/syscalls.c
index facc263c..5774dbe5 100644
--- a/Kernel/syscalls.c
+++ b/Kernel/syscalls.c
@@ -119,9 +119,20 @@ void SyscallHandler(tSyscallRegs *Regs)
 	// Binary Control
 	// ---
 	case SYS_EXECVE:
+		if( !Syscall_ValidString(Regs->Arg1) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
 		ret = Proc_Execve((char*)Regs->Arg1, (char**)Regs->Arg2, (char**)Regs->Arg3);
 		break;
 	case SYS_LOADBIN:
+		if( !Syscall_ValidString(Regs->Arg1)
+		||  !Syscall_Valid(sizeof(Uint), Regs->Arg2) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
 		ret = Binary_Load((char*)Regs->Arg1, (Uint*)Regs->Arg2);
 		break;
 	
@@ -129,6 +140,11 @@ void SyscallHandler(tSyscallRegs *Regs)
 	// Virtual Filesystem
 	// ---
 	case SYS_OPEN:
+		if( !Syscall_ValidString(Regs->Arg1) ) {
+			err = -EINVAL;
+			ret = -1;
+			break;
+		}
 		ret = VFS_Open((char*)Regs->Arg1, Regs->Arg2 | VFS_OPENFLAG_USER);
 		break;