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| author | Andrej Valek <andrej.valek@siemens.com> | 2016-12-12 14:20:21 +0100 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2016-12-16 08:30:02 +0000 |
| commit | 8f3008114d5000a0865f50833db7c3a3f9808601 (patch) | |
| tree | 8062e2937b3be7a983a125b82c4af762c8b0c74c /meta/recipes-core/libxml/libxml2 | |
| parent | 00e928bd1c2aed9caeaf9e411743805d2139a023 (diff) | |
| download | openembedded-core-8f3008114d5000a0865f50833db7c3a3f9808601.tar.gz openembedded-core-8f3008114d5000a0865f50833db7c3a3f9808601.tar.bz2 openembedded-core-8f3008114d5000a0865f50833db7c3a3f9808601.zip | |
libxml2: Fix more NULL pointer derefs
The NULL pointer dereferencing could produced some
security problems.
This is a preventive security fix.
Signed-off-by: Andrej Valek <andrej.valek@siemens.com>
Signed-off-by: Pascal Bach <pascal.bach@siemens.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Diffstat (limited to 'meta/recipes-core/libxml/libxml2')
| -rw-r--r-- | meta/recipes-core/libxml/libxml2/libxml2-fix_NULL_pointer_derefs.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/meta/recipes-core/libxml/libxml2/libxml2-fix_NULL_pointer_derefs.patch b/meta/recipes-core/libxml/libxml2/libxml2-fix_NULL_pointer_derefs.patch new file mode 100644 index 0000000000..83552ca3ec --- /dev/null +++ b/meta/recipes-core/libxml/libxml2/libxml2-fix_NULL_pointer_derefs.patch @@ -0,0 +1,46 @@ +libxml2-2.9.4: Fix more NULL pointer derefs + +xpointer: Fix more NULL pointer derefs + +Upstream-Status: Backported [https://git.gnome.org/browse/libxml2/commit/?id=e905f08123e4a6e7731549e6f09dadff4cab65bd] +CVE: - +Signed-off-by: Andrej Valek <andrej.valek@siemens.com> +Signed-off-by: Pascal Bach <pascal.bach@siemens.com> + +diff --git a/xpointer.c b/xpointer.c +index 676c510..074db24 100644 +--- a/xpointer.c ++++ b/xpointer.c +@@ -555,7 +555,7 @@ xmlXPtrNewRangeNodeObject(xmlNodePtr start, xmlXPathObjectPtr end) { + /* + * Empty set ... + */ +- if (end->nodesetval->nodeNr <= 0) ++ if ((end->nodesetval == NULL) || (end->nodesetval->nodeNr <= 0)) + return(NULL); + break; + default: +@@ -1400,7 +1400,7 @@ xmlXPtrEval(const xmlChar *str, xmlXPathContextPtr ctx) { + */ + xmlNodeSetPtr set; + set = tmp->nodesetval; +- if ((set->nodeNr != 1) || ++ if ((set == NULL) || (set->nodeNr != 1) || + (set->nodeTab[0] != (xmlNodePtr) ctx->doc)) + stack++; + } else +@@ -2073,9 +2073,11 @@ xmlXPtrRangeFunction(xmlXPathParserContextPtr ctxt, int nargs) { + xmlXPathFreeObject(set); + XP_ERROR(XPATH_MEMORY_ERROR); + } +- for (i = 0;i < oldset->locNr;i++) { +- xmlXPtrLocationSetAdd(newset, +- xmlXPtrCoveringRange(ctxt, oldset->locTab[i])); ++ if (oldset != NULL) { ++ for (i = 0;i < oldset->locNr;i++) { ++ xmlXPtrLocationSetAdd(newset, ++ xmlXPtrCoveringRange(ctxt, oldset->locTab[i])); ++ } + } + + /* |