Patch "perf ui browser: Avoid SEGV on title" has been added to the 5.15-stable tree

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

    perf ui browser: Avoid SEGV on title

to the 5.15-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-ui-browser-avoid-segv-on-title.patch
and it can be found in the queue-5.15 subdirectory.

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



commit c7b044007100f3cde867dc2ba44d46060431a69d
Author: Ian Rogers <irogers@xxxxxxxxxx>
Date:   Tue May 7 20:52:58 2024 -0700

    perf ui browser: Avoid SEGV on title
    
    [ Upstream commit 90f01afb0dfafbc9b094bb61e61a4ac297d9d0d2 ]
    
    If the title is NULL then it can lead to a SEGV.
    
    Fixes: 769e6a1e15bdbbaf ("perf ui browser: Don't save pointer to stack memory")
    Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
    Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
    Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
    Cc: Ingo Molnar <mingo@xxxxxxxxxx>
    Cc: James Clark <james.clark@xxxxxxx>
    Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
    Cc: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
    Cc: Leo Yan <leo.yan@xxxxxxxxx>
    Cc: Mark Rutland <mark.rutland@xxxxxxx>
    Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
    Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240508035301.1554434-2-irogers@xxxxxxxxxx
    Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index d09b4cbec6e06..5d6f4f25c33d0 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -203,7 +203,7 @@ void ui_browser__refresh_dimensions(struct ui_browser *browser)
 void ui_browser__handle_resize(struct ui_browser *browser)
 {
 	ui__refresh_dimensions(false);
-	ui_browser__show(browser, browser->title, ui_helpline__current);
+	ui_browser__show(browser, browser->title ?: "", ui_helpline__current);
 	ui_browser__refresh(browser);
 }
 




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