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perf ui browser: Avoid SEGV on title

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[ 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@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240508035301.1554434-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ian Rogers 2024-05-07 20:52:58 -07:00 • committed by Greg Kroah-Hartman
parent afb634b085
commit 8641d8d39d
1 changed files with 1 additions and 1 deletions
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2
tools/perf/ui/browser.c
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@ -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);
}