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authormaxv <maxv@NetBSD.org>2014-06-21 10:23:07 +0000
committermaxv <maxv@NetBSD.org>2014-06-21 10:23:07 +0000
commit64673a6c31ccede36d85a490c1adcaab48b1cfc2 (patch)
treebb76eec75b2655aff283a13d4f1df06bd62ee79d /sys/compat/linux/common/linux_socketcall.c
parent87297db6f323ab91e4a258c3c568ac1e7c13e32c (diff)
If SCARG(uap, what) = 0, copyin() will copy (size_t)-1 bytes, and it's not
a good idea; but not proven harmful. With the help of njoly@
Diffstat (limited to 'sys/compat/linux/common/linux_socketcall.c')
-rw-r--r--sys/compat/linux/common/linux_socketcall.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/compat/linux/common/linux_socketcall.c b/sys/compat/linux/common/linux_socketcall.c
index 96e20262bc4..a4ac9c38103 100644
--- a/sys/compat/linux/common/linux_socketcall.c
+++ b/sys/compat/linux/common/linux_socketcall.c
@@ -1,4 +1,4 @@
-/* $NetBSD: linux_socketcall.c,v 1.43 2013/12/27 15:10:53 njoly Exp $ */
+/* $NetBSD: linux_socketcall.c,v 1.44 2014/06/21 10:23:07 maxv Exp $ */
/*-
* Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: linux_socketcall.c,v 1.43 2013/12/27 15:10:53 njoly Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux_socketcall.c,v 1.44 2014/06/21 10:23:07 maxv Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
@@ -125,7 +125,7 @@ linux_sys_socketcall(struct lwp *l, const struct linux_sys_socketcall_args *uap,
struct linux_socketcall_dummy_args lda;
int error;
- if (SCARG(uap, what) < 0 || SCARG(uap, what) > LINUX_MAX_SOCKETCALL)
+ if (SCARG(uap, what) <= 0 || SCARG(uap, what) > LINUX_MAX_SOCKETCALL)
return ENOSYS;
if ((error = copyin(SCARG(uap, args), &lda,