| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.3 052/140] perf kmem: Fix memory leak in compact_gfp_flags() | Date | Fri, 8 Nov 2019 19:49:40 +0100 |
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From: Yunfeng Ye <yeyunfeng@huawei.com>
[ Upstream commit 1abecfcaa7bba21c9985e0136fa49836164dd8fd ]
The memory @orig_flags is allocated by strdup(), it is freed on the normal path, but leak to free on the error path.
Fix this by adding free(orig_flags) on the error path.
Fixes: 0e11115644b3 ("perf kmem: Print gfp flags in human readable string") Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Feilong Lin <linfeilong@huawei.com> Cc: Hu Shiyuan <hushiyuan@huawei.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/f9e9f458-96f3-4a97-a1d5-9feec2420e07@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- tools/perf/builtin-kmem.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index 9e5e608980832..353c9417e864b 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -688,6 +688,7 @@ static char *compact_gfp_flags(char *gfp_flags) new = realloc(new_flags, len + strlen(cpt) + 2); if (new == NULL) { free(new_flags); + free(orig_flags); return NULL; } -- 2.20.1
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