Patch "perf dlfilter: Initialize addr_location before passing it to thread__find_symbol_fb()" has been added to the 6.5-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    perf dlfilter: Initialize addr_location before passing it to thread__find_symbol_fb()

to the 6.5-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     perf-dlfilter-initialize-addr_location-before-passin.patch
and it can be found in the queue-6.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 11536c421a46c96e3576b8269959645ac5fc2f82
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Date:   Mon Jul 31 12:18:56 2023 +0300

    perf dlfilter: Initialize addr_location before passing it to thread__find_symbol_fb()
    
    [ Upstream commit 42c6dd9d23019ff339d0aca80a444eb71087050e ]
    
    As thread__find_symbol_fb() will end up calling thread__find_map() and
    it in turn will call these on uninitialized memory:
    
            maps__zput(al->maps);
            map__zput(al->map);
            thread__zput(al->thread);
    
    Fixes: 0dd5041c9a0eaf8c ("perf addr_location: Add init/exit/copy functions")
    Reviewed-by: Ian Rogers <irogers@xxxxxxxxxx>
    Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
    Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
    Cc: Athira Rajeev <atrajeev@xxxxxxxxxxxxxxxxxx>
    Cc: Disha Goel <disgoel@xxxxxxxxxxxxxxxxxx>
    Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
    Cc: Kajol Jain <kjain@xxxxxxxxxxxxx>
    Cc: Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>
    Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230731091857.10681-2-adrian.hunter@xxxxxxxxx
    Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/tools/perf/util/dlfilter.c b/tools/perf/util/dlfilter.c
index 46f74b2344dbb..798a53d7e6c9d 100644
--- a/tools/perf/util/dlfilter.c
+++ b/tools/perf/util/dlfilter.c
@@ -166,6 +166,7 @@ static __s32 dlfilter__resolve_address(void *ctx, __u64 address, struct perf_dlf
 	if (!thread)
 		return -1;
 
+	addr_location__init(&al);
 	thread__find_symbol_fb(thread, d->sample->cpumode, address, &al);
 
 	al_to_d_al(&al, &d_al);