diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/signal.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index d41b3a0e8b7e..18048ca42f0e 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1197,6 +1197,13 @@ send_sig_info(int sig, struct siginfo *info, struct task_struct *p) unsigned long flags; /* + * Make sure legacy kernel users don't send in bad values + * (normal paths check this in check_kill_permission). + */ + if (sig < 0 || sig > _NSIG) + return -EINVAL; + + /* * We need the tasklist lock even for the specific * thread case (when we don't need to follow the group * lists) in order to avoid races with "p->sighand" |