Set buffer to NULL to prevent double free (Kamil Dudka at redhat)

diff --git a/src/buffer.c b/src/buffer.c
index 6d8967d2fa73de66f48b94b141d699d9ffb3c962..0a27e578848375f49dd3543f7eef083fccfc7abb 100644 (file)
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -27,7 +27,7 @@
 #include "file.h"
 
 #ifndef        lint
-FILE_RCSID("@(#)$File: buffer.c,v 1.6 2019/05/07 02:27:11 christos Exp $")
+FILE_RCSID("@(#)$File: buffer.c,v 1.7 2019/06/10 21:35:26 christos Exp $")
 #endif /* lint */
 
 #include "magic.h"
@@ -77,6 +77,7 @@ buffer_fill(const struct buffer *bb)
        b->eoff = b->st.st_size - b->elen;
        if (pread(b->fd, b->ebuf, b->elen, b->eoff) == -1) {
                free(b->ebuf);
+               b->ebuf = NULL;
                goto out;
        }