Mercurial > hg > nginx
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Memcached: protect from too long responses.
If a memcached response was followed by a correct trailer, and then
the NUL character followed by some extra data - this was accepted by
the trailer checking code. This in turn resulted in ctx->rest underflow
and caused negative size buffer on the next reading from the upstream,
followed by the "negative size buf in writer" alert.
Fix is to always check for too long responses, so a correct trailer cannot
be followed by extra data.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 06 Jul 2020 18:36:17 +0300 |
parents | 325b3042edd6 |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. if [ "$NGX_PLATFORM" != win32 ]; then ngx_feature="C compiler" ngx_feature_name= ngx_feature_run=yes ngx_feature_incs= ngx_feature_path= ngx_feature_libs= ngx_feature_test= . auto/feature if [ $ngx_found = no ]; then echo echo $0: error: C compiler $CC is not found echo exit 1 fi fi if [ "$CC" = cl ]; then NGX_CC_NAME=msvc echo " + using Microsoft Visual C++ compiler" elif [ "$CC" = wcl386 ]; then NGX_CC_NAME=owc echo " + using Open Watcom C compiler" elif [ "$CC" = bcc32 ]; then NGX_CC_NAME=bcc echo " + using Borland C++ compiler" elif `$CC -V 2>&1 | grep '^Intel(R) C' >/dev/null 2>&1`; then NGX_CC_NAME=icc echo " + using Intel C++ compiler" elif `$CC -v 2>&1 | grep 'gcc version' >/dev/null 2>&1`; then NGX_CC_NAME=gcc echo " + using GNU C compiler" elif `$CC -v 2>&1 | grep 'clang version' >/dev/null 2>&1`; then NGX_CC_NAME=clang echo " + using Clang C compiler" elif `$CC -v 2>&1 | grep 'LLVM version' >/dev/null 2>&1`; then NGX_CC_NAME=clang echo " + using Clang C compiler" elif `$CC -V 2>&1 | grep 'Sun C' >/dev/null 2>&1`; then NGX_CC_NAME=sunc echo " + using Sun C compiler" elif `$CC -V 2>&1 | grep '^Compaq C' >/dev/null 2>&1`; then NGX_CC_NAME=ccc echo " + using Compaq C compiler" elif `$CC -V 2>&1 | grep '^aCC: ' >/dev/null 2>&1`; then NGX_CC_NAME=acc echo " + using HP aC++ compiler" else NGX_CC_NAME=unknown fi