fix invalid pointer during resolving mDNS uri

0001-scheduler-ipp.c-Allocate-device_uri-via-cupsdSetStri.patch

@@ -0,0 +1,36 @@
+From 020609ad9eb84ab5a4c602ff604b2f208a6cdb8d Mon Sep 17 00:00:00 2001
+From: Zdenek Dohnal <zdohnal@redhat.com>
+Date: Wed, 22 Jun 2022 09:23:45 +0200
+Subject: [PATCH] scheduler/ipp.c: Allocate device_uri via cupsdSetString()
+
+If a driverless printer has .local in its URI, we resolve the
+URI and save the resolved one as new device URI. The problem was that
+a local pointer was assigned to the structure which is passed to the
+function as parameter, so the pointer became invalid once the execution
+left the create_local_bg_thread() function.
+
+We need to allocate the device URI via cupsdSetString() - the string is
+then freed when the printer is deleted or cupsd shuts down.
+
+Fixes #419.
+---
+ CHANGES.md      | 1 +
+ scheduler/ipp.c | 2 +-
+ 2 files changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/scheduler/ipp.c b/scheduler/ipp.c
+index 3a849bdb5..b722712f6 100644
+--- a/scheduler/ipp.c
++++ b/scheduler/ipp.c
+@@ -5307,7 +5307,7 @@ create_local_bg_thread(
+       return (NULL);
+     }
+ 
+-    printer->device_uri = uri;
++    cupsdSetString(&printer->device_uri, uri);
+   }
+ 
+   if (httpSeparateURI(HTTP_URI_CODING_ALL, printer->device_uri, scheme, sizeof(scheme), userpass, sizeof(userpass), host, sizeof(host), &port, resource, sizeof(resource)) < HTTP_URI_STATUS_OK)
+-- 
+2.37.1
+

cups.spec

@@ -15,7 +15,7 @@ Summary: CUPS printing system
 Name: cups
 Epoch: 1
 Version: 2.4.2
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: ASL 2.0
 Url: https://openprinting.github.io/cups/
 # Apple stopped uploading the new versions into github, use OpenPrinting fork
@@ -67,6 +67,7 @@ Patch100: cups-lspp.patch
 %endif
 
 #### UPSTREAM PATCHES (starts with 1000) ####
+Patch1001: 0001-scheduler-ipp.c-Allocate-device_uri-via-cupsdSetStri.patch
 
 ##### Patches removed because IMHO they aren't no longer needed
 ##### but still I'll leave them in git in case their removal
@@ -270,6 +271,7 @@ to CUPS daemon. This solution will substitute printer drivers and raw queues in
 %patch13 -p1 -b .dymo-deviceid
 
 # UPSTREAM PATCHES
+%patch1001 -p1 -b .invalid-pointer-uri
 
 
 %if %{lspp}
@@ -660,6 +662,9 @@ rm -f %{cups_serverbin}/backend/smb
 %{_mandir}/man7/ippeveps.7.gz
 
 %changelog
+* Tue Aug 02 2022 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.4.2-3
+- fix invalid pointer during resolving mDNS uri
+
 * Wed Jul 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1:2.4.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild