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fix segfault if cache key is larger than upstream buffer size

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patch by Lanshun Zhou
This commit is contained in:
Igor Sysoev 2011-07-19 11:24:16 +00:00
parent 82afb9cc86
commit 6c3c3bbe42
1 changed files with 9 additions and 0 deletions
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9
src/http/ngx_http_upstream.c
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@ -661,6 +661,15 @@ ngx_http_upstream_cache(ngx_http_request_t *r, ngx_http_upstream_t *u)
ngx_http_file_cache_create_key(r);
if (r->cache->header_start >= u->conf->buffer_size) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"cache key too large, increase upstream buffer size %uz",
u->conf->buffer_size);
r->cache = NULL;
return NGX_DECLINED;
}
switch (ngx_http_test_predicates(r, u->conf->cache_bypass)) {
case NGX_ERROR: