Mercurial > hg > nginx-quic
view auto/lib/make @ 7422:2dad54c2b8ed stable-1.14
Mp4: fixed possible pointer overflow on 32-bit platforms.
On 32-bit platforms mp4->buffer_pos might overflow when a large
enough (close to 4 gigabytes) atom is being skipped, resulting in
incorrect memory addesses being read further in the code. In most
cases this results in harmless errors being logged, though may also
result in a segmentation fault if hitting unmapped pages.
To address this, ngx_mp4_atom_next() now only increments mp4->buffer_pos
up to mp4->buffer_end. This ensures that overflow cannot happen.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 21 Nov 2018 20:23:16 +0300 |
parents | 9eefb38f0005 |
children |
line wrap: on
line source
# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. if [ $PCRE != NONE -a $PCRE != NO -a $PCRE != YES ]; then . auto/lib/pcre/make fi if [ $OPENSSL != NONE -a $OPENSSL != NO -a $OPENSSL != YES ]; then . auto/lib/openssl/make fi if [ $ZLIB != NONE -a $ZLIB != NO -a $ZLIB != YES ]; then . auto/lib/zlib/make fi if [ $NGX_LIBATOMIC != NO -a $NGX_LIBATOMIC != YES ]; then . auto/lib/libatomic/make fi if [ $USE_PERL != NO ]; then . auto/lib/perl/make fi