From: Tom Hughes <tom@compton.nu>
Date: Thu, 15 Jan 2009 08:48:14 +0000 (+0000)
Subject: The SG_GET_VERSION_NUM ioctl writes to memory rather than reading it.
X-Git-Tag: svn/VALGRIND_3_5_0~1096
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9b5365f10d948d154193a4966da0816a8b8a496b;p=thirdparty%2Fvalgrind.git

The SG_GET_VERSION_NUM ioctl writes to memory rather than reading it.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8957
---

diff --git a/coregrind/m_syswrap/syswrap-generic.c b/coregrind/m_syswrap/syswrap-generic.c
index 6bc3756652..97b6006fcb 100644
--- a/coregrind/m_syswrap/syswrap-generic.c
+++ b/coregrind/m_syswrap/syswrap-generic.c
@@ -3354,7 +3354,7 @@ PRE(sys_ioctl)
       PRE_MEM_WRITE( "ioctl(SG_GET_TIMEOUT)", ARG3, sizeof(int) );
       break;
    case VKI_SG_GET_VERSION_NUM:
-      PRE_MEM_READ(  "ioctl(SG_GET_VERSION_NUM)",  ARG3, sizeof(int) );
+      PRE_MEM_WRITE(  "ioctl(SG_GET_VERSION_NUM)",  ARG3, sizeof(int) );
       break;
    case VKI_SG_EMULATED_HOST: /* 0x2203 */
       PRE_MEM_WRITE( "ioctl(SG_EMULATED_HOST)",    ARG3, sizeof(int) );
@@ -4434,6 +4434,7 @@ POST(sys_ioctl)
       POST_MEM_WRITE(ARG3, sizeof(int));
       break;
    case VKI_SG_GET_VERSION_NUM:
+      POST_MEM_WRITE(ARG3, sizeof(int));
       break;
    case VKI_SG_EMULATED_HOST:
       POST_MEM_WRITE(ARG3, sizeof(int));