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| author | Samasth Norway Ananda <samasth.norway.ananda@oracle.com> | 2024-05-10 03:34:24 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-05-10 17:28:11 +0300 |
| commit | 09541603462c399c7408d50295db99b4b8042eaa (patch) | |
| tree | f687f6ec3791e71bd553c2d132e7cdf106484a8f /tools/perf/builtin-daemon.c | |
| parent | 230a7a71f92212e723fa435d4ca5922de33ec88a (diff) | |
| download | linux-09541603462c399c7408d50295db99b4b8042eaa.tar.xz | |
perf daemon: Fix file leak in daemon_session__control
The open() function returns -1 on error.
The 'control' and 'ack' file descriptors are both initialized with
open() and further validated with 'if' statement.
'if (!control)' would evaluate to 'true' if returned value on error were
'0' but it is actually '-1'.
Fixes: edcaa47958c7438b ("perf daemon: Add 'ping' command")
Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240510003424.2016914-1-samasth.norway.ananda@oracle.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-daemon.c')
| -rw-r--r-- | tools/perf/builtin-daemon.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-daemon.c b/tools/perf/builtin-daemon.c index 83954af36753..de76bbc50bfb 100644 --- a/tools/perf/builtin-daemon.c +++ b/tools/perf/builtin-daemon.c @@ -523,7 +523,7 @@ static int daemon_session__control(struct daemon_session *session, session->base, SESSION_CONTROL); control = open(control_path, O_WRONLY|O_NONBLOCK); - if (!control) + if (control < 0) return -1; if (do_ack) { @@ -532,7 +532,7 @@ static int daemon_session__control(struct daemon_session *session, session->base, SESSION_ACK); ack = open(ack_path, O_RDONLY, O_NONBLOCK); - if (!ack) { + if (ack < 0) { close(control); return -1; } |