LU-9715 libcfs: crash in cpu_pattern parsing code

[fs/lustre-release.git] / libcfs / libcfs / linux / linux-cpu.c

diff --git a/libcfs/libcfs/linux/linux-cpu.c b/libcfs/libcfs/linux/linux-cpu.c
index 7db6a0f..d351eaa 100644 (file)
--- a/libcfs/libcfs/linux/linux-cpu.c
+++ b/libcfs/libcfs/linux/linux-cpu.c
@@ -925,8 +925,11 @@ static struct cfs_cpt_table *cfs_cpt_table_create_pattern(const char *pattern)
        }
 
        if (ncpt == 0) { /* scanning bracket which is mark of partition */
-               for (bracket = str; bracket != NULL; bracket++, ncpt++)
-                       bracket = strchr(bracket, '[');
+               bracket = str;
+               while ((bracket = strchr(bracket, '['))) {
+                       bracket++;
+                       ncpt++;
+               }
        }
 
        if (ncpt == 0 ||