From: Karel Zak <kzak@redhat.com>
Date: Mon, 6 May 2019 10:39:07 +0000 (+0200)
Subject: lsblk: fix heap-use-after-free
X-Git-Tag: v2.34-rc2~100
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6f8a671a9a45125b6261c08b849833bce0f39a8;p=thirdparty%2Futil-linux.git

lsblk: fix heap-use-after-free

Addresses: https://github.com/karelzak/util-linux/issues/787
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c
index 34a6cd9cac..30d5d9b4ea 100644
--- a/misc-utils/lsblk.c
+++ b/misc-utils/lsblk.c
@@ -1560,6 +1560,7 @@ static int process_all_devices(struct lsblk_devtree *tr)
 		if (is_maj_excluded(dev->maj) || !is_maj_included(dev->maj)) {
 			DBG(DEV, ul_debug(" %s: ignore (by filter)", d->d_name));
 			lsblk_devtree_remove_device(tr, dev);
+			dev = NULL;
 			goto next;
 		}