6.5-stable review patch. If anyone has any objections, please let me know.
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From: Arnaldo Carvalho de Melo acme@kernel.org
[ 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@google.com Cc: Adrian Hunter adrian.hunter@intel.com Cc: Aneesh Kumar K.V aneesh.kumar@linux.ibm.com Cc: Athira Rajeev atrajeev@linux.vnet.ibm.com Cc: Disha Goel disgoel@linux.vnet.ibm.com Cc: Jiri Olsa jolsa@kernel.org Cc: Kajol Jain kjain@linux.ibm.com Cc: Madhavan Srinivasan maddy@linux.ibm.com Cc: Namhyung Kim namhyung@kernel.org Link: https://lore.kernel.org/r/20230731091857.10681-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/dlfilter.c | 1 + 1 file changed, 1 insertion(+)
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);