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Diffstat (limited to 'src/http/ngx_http_cache.c')
-rw-r--r--src/http/ngx_http_cache.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/http/ngx_http_cache.c b/src/http/ngx_http_cache.c
index b11558c90..b3245a098 100644
--- a/src/http/ngx_http_cache.c
+++ b/src/http/ngx_http_cache.c
@@ -107,6 +107,13 @@ int ngx_http_cache_open_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx,
ctx->date = h->date;
ctx->length = h->length;
+ if (h->key_len > (size_t) (ctx->buf->last - ctx->buf->pos)) {
+ ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
+ "cache file \"%s\" is probably invalid",
+ ctx->file.name.data);
+ return NGX_DECLINED;
+ }
+
if (h->key_len != ctx->key.len
|| ngx_strncmp(h->key, ctx->key.data, h->key_len) != 0)
{