openwrt/270-fix-use-after-free.patch at 7ba20627445972753fb41677fc24c5377b86feba - openwrt - Gitea

ExternalVendorCode/openwrt

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Jo-Philipp Wich 4c60a6f803 opkg: fix use-after-free with duplicate packages on the command line

When the same package file is specified multiple times on the opkg install
command line, the name pointer on the argv array becomes stale after the
package structures have been merged, leading to invalid memory accesses
upon install.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

2016-04-23 14:03:50 +02:00

12 lines

256 B

Diff

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 --- a/libopkg/opkg_download.c
 +++ b/libopkg/opkg_download.c
@@ -335,7 +335,7 @@ opkg_prepare_url_for_install(const char
       hash_insert_pkg(pkg, 1);
       if (namep) {
 -	  *namep = pkg->name;
 +	  *namep = xstrdup(pkg->name);
       }
       return 0;
  }