6.6-stable review patch. If anyone has any objections, please let me know.
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From: Ian Rogers irogers@google.com
[ Upstream commit 63a088e999de3f431f87d9a367933da894ddb613 ]
The kcore loading creates a set of list nodes that have reference counted references to maps of the kcore. The list node freeing in the success path wasn't releasing the maps, add the missing puts. It is unclear why this leak was being missed by leak sanitizer.
Fixes: 83720209961f ("perf map: Move map list node into symbol") Signed-off-by: Ian Rogers irogers@google.com Link: https://lore.kernel.org/r/20250624190326.2038704-2-irogers@google.com Signed-off-by: Namhyung Kim namhyung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/symbol.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index ea24f21aafc3..4f0bbebcb6d6 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1366,6 +1366,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map, goto out_err; } } + map__zput(new_node->map); free(new_node); }