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| author | Ian Rogers <[email protected]> | 2019-09-26 22:00:18 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2019-09-30 20:29:35 +0000 |
| commit | 7d4c85b7035eb2f9ab217ce649dcd1bfaf0cacd3 (patch) | |
| tree | 6dff74173a0f18d067b3f0853c02b66805d5c978 /tools/perf/util/llvm-utils.c | |
| parent | tools headers kvm: Sync kvm headers with the kernel sources (diff) | |
| download | kernel-7d4c85b7035eb2f9ab217ce649dcd1bfaf0cacd3.tar.gz kernel-7d4c85b7035eb2f9ab217ce649dcd1bfaf0cacd3.zip | |
perf llvm: Don't access out-of-scope array
The 'test_dir' variable is assigned to the 'release' array which is
out-of-scope 3 lines later.
Extend the scope of the 'release' array so that an out-of-scope array
isn't accessed.
Bug detected by clang's address sanitizer.
Fixes: 07bc5c699a3d ("perf tools: Make fetch_kernel_version() publicly available")
Cc: [email protected] # v4.4+
Signed-off-by: Ian Rogers <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/util/llvm-utils.c')
| -rw-r--r-- | tools/perf/util/llvm-utils.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c index 8d04e3d070b1..8b14e4a7f1dc 100644 --- a/tools/perf/util/llvm-utils.c +++ b/tools/perf/util/llvm-utils.c @@ -233,14 +233,14 @@ static int detect_kbuild_dir(char **kbuild_dir) const char *prefix_dir = ""; const char *suffix_dir = ""; + /* _UTSNAME_LENGTH is 65 */ + char release[128]; + char *autoconf_path; int err; if (!test_dir) { - /* _UTSNAME_LENGTH is 65 */ - char release[128]; - err = fetch_kernel_version(NULL, release, sizeof(release)); if (err) |