Mercurial > hg > nginx-quic
view docs/dtd/changes.dtd @ 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 | 5e3bda6f5208 |
children |
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<!ENTITY nbsp " " > <!ENTITY mdash " - " > <!ELEMENT change_log (changes)* > <!ATTLIST change_log title CDATA #REQUIRED > <!ELEMENT changes (change)* > <!ATTLIST changes ver CDATA #REQUIRED date CDATA #REQUIRED > <!ELEMENT change (para)* > <!ATTLIST change type (bugfix | feature | change | security | workaround) #IMPLIED > <!ELEMENT para (#PCDATA | at | br | nobr)* > <!ATTLIST para lang (ru | en) #REQUIRED > <!ELEMENT at EMPTY > <!ELEMENT br EMPTY > <!ELEMENT nobr (#PCDATA) >