From: Roy Marples <roy@marples.name>
Date: Tue, 16 Feb 2016 09:54:29 +0000 (+0000)
Subject: Set fp to NULL after fclose() to avoid a potential secondary fclose() if the
X-Git-Tag: v6.10.2~44
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce66b1e5ed45df99a8fb770fc2dbd8510a6fe921;p=thirdparty%2Fdhcpcd.git

Set fp to NULL after fclose() to avoid a potential secondary fclose() if the
first call failed.
Fixes [a4c18d501a].
---

diff --git a/ipv6.c b/ipv6.c
index 16f73ad5..f7451e40 100644
--- a/ipv6.c
+++ b/ipv6.c
@@ -228,6 +228,7 @@ ipv6_readsecret(struct dhcpcd_ctx *ctx)
 	    hwaddr_ntoa(ctx->secret, ctx->secret_len, line, sizeof(line)));
 	if (fclose(fp) == EOF)
 		x = -1;
+	fp = NULL;
 	if (x > 0)
 		return (ssize_t)ctx->secret_len;