1921881 - [abrt] cups: __strcmp_avx2(): help.cgi killed by SIGSEGV

cups-helpcgi-segfault.patch

@@ -0,0 +1,13 @@
+diff --git a/cgi-bin/help-index.c b/cgi-bin/help-index.c
+index ce97e47..3da1010 100644
+--- a/cgi-bin/help-index.c
++++ b/cgi-bin/help-index.c
+@@ -579,7 +579,7 @@ helpSearchIndex(help_index_t *hi,	/* I - Index */
+   */
+ 
+   for (; node; node = (help_node_t *)cupsArrayNext(hi->nodes))
+-    if (section && strcmp(node->section, section))
++    if (node->section && section && strcmp(node->section, section))
+       continue;
+     else if (filename && strcmp(node->filename, filename))
+       continue;

cups.spec

@@ -69,7 +69,12 @@ Patch100: cups-lspp.patch
 %endif
 
 #### UPSTREAM PATCHES (starts with 1000) ####
+# backported from upstream
 Patch1000: cve-2020-10001-ippReadIO-buffer.patch
+# 1921881 - [abrt] cups: __strcmp_avx2(): help.cgi killed by SIGSEGV
+# help.cgi segfaulted because it compared NULL in strcmp()
+# backported from upstream https://github.com/OpenPrinting/cups/pull/81
+Patch1001: cups-helpcgi-segfault.patch
 
 ##### Patches removed because IMHO they aren't no longer needed
 ##### but still I'll leave them in git in case their removal
@@ -270,7 +275,11 @@ to CUPS daemon. This solution will substitute printer drivers and raw queues in
 %patch13 -p1 -b .dymo-deviceid
 
 # UPSTREAM PATCHES
+# cve-2020-10001
 %patch1000 -p1 -b .cve2020-10001
+# 1921881 - [abrt] cups: __strcmp_avx2(): help.cgi killed by SIGSEGV
+%patch1001 -p1 -b .helpcgi-segfault
+
 
 %if %{lspp}
 # LSPP support.
@@ -679,6 +688,7 @@ rm -f %{cups_serverbin}/backend/smb
 * Mon Feb 01 2021 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.3.3op1-4
 - fix for CVE-2020-10001
 - recommend nss-mdns for Fedora to have a working default for now
+- 1921881 - [abrt] cups: __strcmp_avx2(): help.cgi killed by SIGSEGV
 
 * Thu Jan 28 2021 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.3.3op1-3
 - remove nss-mdns dependency - let the user decide whether use resolved or nss-mdns