diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2024-03-26 10:32:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-12 11:12:23 +0200 |
| commit | 6bb1efff9b174dbe210c6b82cc7052dc07ff811f (patch) | |
| tree | 1e1fb30cac9a17a00952b6aa8111f5b5264ff8d9 /drivers/input/misc/pwm-beeper.c | |
| parent | 0053891e2f4f5466d4075c60904ea86fcde59e51 (diff) | |
perf intel-pt: Fix unassigned instruction op (discovered by MemorySanitizer)
[ Upstream commit e101a05f79fd4ee3e89d2f3fb716493c33a33708 ]
MemorySanitizer discovered instances where the instruction op value was
not assigned.:
WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x5581c00a76b3 in intel_pt_sample_flags tools/perf/util/intel-pt.c:1527:17
Uninitialized value was stored to memory at
#0 0x5581c005ddf8 in intel_pt_walk_insn tools/perf/util/intel-pt-decoder/intel-pt-decoder.c:1256:25
The op value is used to set branch flags for branch instructions
encountered when walking the code, so fix by setting op to
INTEL_PT_OP_OTHER in other cases.
Fixes: 4c761d805bb2d2ea ("perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type")
Reported-by: Ian Rogers <irogers@google.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Closes: https://lore.kernel.org/linux-perf-users/20240320162619.1272015-1-irogers@google.com/
Link: https://lore.kernel.org/r/20240326083223.10883-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/input/misc/pwm-beeper.c')
0 files changed, 0 insertions, 0 deletions