From 7ce66139a99ce57caaf47b64afed5cb6ed02c5ed Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Mon, 10 Feb 2020 15:32:17 +0100 Subject: perf maps: Fix map__clone() for struct kmap The map__clone() function can be called on kernel maps as well, so it needs to duplicate the whole kmap data. Reported-by: Ravi Bangoria Signed-off-by: Jiri Olsa Tested-by: Ravi Bangoria Tested-by: Kim Phillips Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20200210143218.24948-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/map.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'tools/perf') diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index f67960bedebb..cea05fc9595c 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -375,8 +375,13 @@ struct symbol *map__find_symbol_by_name(struct map *map, const char *name) struct map *map__clone(struct map *from) { - struct map *map = memdup(from, sizeof(*map)); + size_t size = sizeof(struct map); + struct map *map; + + if (from->dso && from->dso->kernel) + size += sizeof(struct kmap); + map = memdup(from, size); if (map != NULL) { refcount_set(&map->refcnt, 1); RB_CLEAR_NODE(&map->rb_node); -- cgit v1.2.3