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From: Corinna Vinschen <corinna@sourceware.org> To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin] Cygwin: pthread_kill: check for invalid signal number Date: Mon, 22 Nov 2021 11:52:18 +0000 (GMT) [thread overview] Message-ID: <20211122115218.98B923858022@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=d54d8f173d66c7659061de664d445458737b4a75 commit d54d8f173d66c7659061de664d445458737b4a75 Author: Corinna Vinschen <corinna@vinschen.de> Date: Mon Nov 22 12:19:02 2021 +0100 Cygwin: pthread_kill: check for invalid signal number Signed-off-by: Corinna Vinschen <corinna@vinschen.de> Diff: --- winsup/cygwin/thread.cc | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc index 7c6a919c0..fcfd75c79 100644 --- a/winsup/cygwin/thread.cc +++ b/winsup/cygwin/thread.cc @@ -3351,6 +3351,10 @@ pthread_kill (pthread_t thread, int sig) if (!pthread::is_good_object (&thread)) return EINVAL; + /* check that sig is in right range */ + if (sig < 0 || sig >= _NSIG) + return EINVAL; + siginfo_t si = {0}; si.si_signo = sig; si.si_code = SI_USER;
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