Merge pull request #21 from jnpkrn/fix-memmove-segfault

Fix segfault when memmoving with negative/enormous n
libcheck · Mar 5, 2016 · 71034f6 · 71034f6
2 parents 766ab2c + 25a8706
commit 71034f6
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/check_pack.c b/src/check_pack.c
@@ -465,6 +465,8 @@ RcvMsg *punpack(FILE * fdes)
         /* Parse one message */
         n = get_result(buf, rmsg);
         nparse -= n;
+        if (nparse < 0)
+            eprintf("Error in call to get_result", __FILE__, __LINE__ - 3);
         /* Move remaining data in buffer to the beginning */
         memmove(buf, buf + n, nparse);
         /* If EOF has not been seen */