https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8ddd4c2ff6243208a374e0bcb96c43d1478f8ffd
commit 8ddd4c2ff6243208a374e0bcb96c43d1478f8ffd Author: Corinna Vinschen <[email protected]> Date: Mon Nov 22 12:19:02 2021 +0100 Cygwin: pthread_kill: check for invalid signal number Signed-off-by: Corinna Vinschen <[email protected]> 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;
