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-rw-r--r--src/http/modules/ngx_http_gzip_filter_module.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/http/modules/ngx_http_gzip_filter_module.c b/src/http/modules/ngx_http_gzip_filter_module.c
index 09994d9b2..470be3daf 100644
--- a/src/http/modules/ngx_http_gzip_filter_module.c
+++ b/src/http/modules/ngx_http_gzip_filter_module.c
@@ -498,6 +498,10 @@ ngx_http_gzip_filter_memory(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx)
wbits--;
memlevel--;
}
+
+ if (memlevel < 1) {
+ memlevel = 1;
+ }
}
ctx->wbits = wbits;