libxml2: fix CVE-2021-3537
Parsing specially crafted Mixed Content while parsing XML data may
lead to invalid data structure being created, as errors were not
propagated. This could lead to several NULL Pointer Dereference when
post-validating documents parsed in recovery mode.
CVE: CVE-2021-3537
Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/-/commit/
babe75030c7f64a37826bb3342317134568bef61]
Signed-off-by: Tony Tascioglu <tony.tascioglu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
