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core: fix invalid free() in killall()

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static int killall(....) in ./src/core/killall.c tries to get "s"
initialized by calling get_process_comm(...) which calls
read_one_line_file(...) which if it fails will mean it is left
uninitialized.
It is then used in argument to strna(s) call where it is
dereferenced(!), in addition to nothing else initializing it before
the scope it is in finishes.
This commit is contained in:
Andreas Henriksson 2014-06-13 18:48:19 +02:00 committed by Tom Gundersen
parent 8186d9dda0
commit 3e09eb5c83
1 changed files with 1 additions and 1 deletions
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src/core/killall.c
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@ -168,7 +168,7 @@ static int killall(int sig, Set *pids, bool send_sighup) {
continue;
if (sig == SIGKILL) {
_cleanup_free_ char *s;
_cleanup_free_ char *s = NULL;
get_process_comm(pid, &s);
log_notice("Sending SIGKILL to PID "PID_FMT" (%s).", pid, strna(s));