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-rw-r--r--kernel/signal.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 228fdb5c01d..de66def7164 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1191,8 +1191,10 @@ EXPORT_SYMBOL_GPL(kill_pid_info_as_uid);
static int kill_something_info(int sig, struct siginfo *info, int pid)
{
+ int ret;
+ rcu_read_lock();
if (!pid) {
- return kill_pg_info(sig, info, process_group(current));
+ ret = kill_pgrp_info(sig, info, task_pgrp(current));
} else if (pid == -1) {
int retval = 0, count = 0;
struct task_struct * p;
@@ -1207,12 +1209,14 @@ static int kill_something_info(int sig, struct siginfo *info, int pid)
}
}
read_unlock(&tasklist_lock);
- return count ? retval : -ESRCH;
+ ret = count ? retval : -ESRCH;
} else if (pid < 0) {
- return kill_pg_info(sig, info, -pid);
+ ret = kill_pgrp_info(sig, info, find_pid(-pid));
} else {
- return kill_proc_info(sig, info, pid);
+ ret = kill_pid_info(sig, info, find_pid(pid));
}
+ rcu_read_unlock();
+ return ret;
}
/*