Fixed: ngx_http_read_client_request_body returned unexpected buffer type #22
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- after post request is processed the calling to ngx_http_read_client_request_body will ingore r->request_body_in_file_only option, which is not expected.
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Nice catch, but looks like there is a problem with modsecurity_read_body_cb. nginx: client_max_body_size 10m; ModSecurity: SecRequestBodyLimit 10048576; Upload 5Mb file and always get the same error: 2013/01/04 00:55:16 [info] 27981#0: [client 127.0.0.1] ModSecurity: Request body is larger than the configured limit (10048576).. Deny with code (413) [hostname "standalone"] [uri "/test_post.php"] [unique_id "12345"] |
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Fixed 'Request body is larger‘ error. |
brenosilva
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Jan 4, 2013
Fixed: ngx_http_read_client_request_body returned unexpected buffer type
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Applied. Thanks! |
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Hello Sirs, When applied this patch and run ab -n 1000 -c 1 "http://192.168.0.110/index.html" , i'm seeing a lot of seg faults in error.log. Could you take a look ? |
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I'm going to build a new VM and redo my tests. My current VM is not 100%. Let's see |
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I can confirm the issues in a fresh VM. |
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OK. the bug (ab related one ) disappeared when disable SecAuditEngine... should be related to https://www.modsecurity.org/tracker/browse/MODSEC-374 |
ghost
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after request body phase, POSTed request body is saved in memory buffer chain and request_body_in_file_only option is ignored, so if other module set request_body_in_file_only on and call ngx_http_read_client_request_body after modsecurity handler, the module will receive unexpected buffer. for example http_dav_handler for PUT request.