From: Tom Hughes <tom@compton.nu>
Date: Tue, 8 Jan 2008 13:54:43 +0000 (+0000)
Subject: Valid file descriptor argument to llseek system call.
X-Git-Tag: svn/VALGRIND_3_4_0~1111
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e25736ec6cea37098a14f6fde969b5a89f34adf2;p=thirdparty%2Fvalgrind.git

Valid file descriptor argument to llseek system call.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7322
---

diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
index e276fa5ae0..c17f0ef3d9 100644
--- a/coregrind/m_syswrap/syswrap-linux.c
+++ b/coregrind/m_syswrap/syswrap-linux.c
@@ -582,7 +582,10 @@ PRE(sys_llseek)
                  unsigned int, fd, unsigned long, offset_high,
                  unsigned long, offset_low, vki_loff_t *, result,
                  unsigned int, whence);
-   PRE_MEM_WRITE( "llseek(result)", ARG4, sizeof(vki_loff_t));
+   if (!ML_(fd_allowed)(ARG1, "llseek", tid, False))
+      SET_STATUS_Failure( VKI_EBADF );
+   else
+      PRE_MEM_WRITE( "llseek(result)", ARG4, sizeof(vki_loff_t));
 }
 POST(sys_llseek)
 {