https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=946cd7df284175e5c36140349a4173ac64a76115
commit 946cd7df284175e5c36140349a4173ac64a76115 Author: Corinna Vinschen <cori...@vinschen.de> Date: Thu Jan 19 21:11:22 2017 +0100 check_iovec: Change test to be more robust against invalid iovcnt values Stop running wild if iovcnt is < 0 to begin with. Signed-off-by: Corinna Vinschen <cori...@vinschen.de> Diff: --- winsup/cygwin/miscfuncs.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/winsup/cygwin/miscfuncs.cc b/winsup/cygwin/miscfuncs.cc index e042d00..63e60f0 100644 --- a/winsup/cygwin/miscfuncs.cc +++ b/winsup/cygwin/miscfuncs.cc @@ -60,7 +60,7 @@ check_iovec (const struct iovec *iov, int iovcnt, bool forwrite) size_t tot = 0; - while (iovcnt != 0) + while (iovcnt > 0) { if (iov->iov_len > SSIZE_MAX || (tot += iov->iov_len) > SSIZE_MAX) {