1 files changed, 53 insertions, 0 deletions
diff --git a/testing/nfs-utils/kernel-3.0-segfault.patch b/testing/nfs-utils/kernel-3.0-segfault.patch
new file mode 100644
index 000000000..3dba94a05
--- /dev/null
+++ b/testing/nfs-utils/kernel-3.0-segfault.patch
@@ -0,0 +1,53 @@
+mount.nfs segfaults if kernel version number does not contain
+at least 3 components delimited with a dot.
+
+Avoid this by matching up to three unsigned integers inialised
+to zero, separated by dots.
+
+A version that does not start with an integer is probably a future
+version where the versioning evolved to another scheme.
+Return UINT_MAX which is guaranteed to be higher than existing
+versions. This would also make it possible to easily identify
+versions that do not start with an integer.
+
+Signed-off-by: Luk Claes <luk@...>
+---
+ utils/mount/version.h |   16 +++++++++-------
+ 1 files changed, 9 insertions(+), 7 deletions(-)
+
+diff --git a/utils/mount/version.h b/utils/mount/version.h
+index af61a6f..531cf68 100644
+--- a/utils/mount/version.h
++++ b/utils/mount/version.h
+@@ -23,8 +23,8 @@
+ #ifndef _NFS_UTILS_MOUNT_VERSION_H
+ #define _NFS_UTILS_MOUNT_VERSION_H
+
+-#include <stdlib.h>
+-#include <string.h>
++#include <stdio.h>
++#include <limits.h>
+
+ #include <sys/utsname.h>
+
+@@ -37,14 +37,16 @@ static inline unsigned int MAKE_VERSION(unsigned int p, unsigned int q,
+ static inline unsigned int linux_version_code(void)
+ {
+ 	struct utsname my_utsname;
+-	unsigned int p, q, r;
++	unsigned int p, q = 0, r = 0;
+
++	/* UINT_MAX as backward compatibility code should not be run */
+ 	if (uname(&my_utsname))
+-		return 0;
++		return UINT_MAX;
+
+-	p = (unsigned int)atoi(strtok(my_utsname.release, "."));
+-	q = (unsigned int)atoi(strtok(NULL, "."));
+-	r = (unsigned int)atoi(strtok(NULL, "."));
++	/* UINT_MAX as future versions might not start with an integer */
++	if (sscanf(my_utsname.release, "%u.%u.%u", &p, &q, &r) < 1)
++		return UINT_MAX;
++	
+ 	return MAKE_VERSION(p, q, r);
+ }