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ovector will be created to accept greater than nmatch elements for processing.
Allocate enough elts in all circumstances for pcre2api.



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Follow up to r1773761: we need to check both ap_send_error_response() and internal redirect recursions.

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When check_headers() fails, clear anything (headers and body) from original/errorneous
response before returning 500.


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nonsequitor.



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This patch removes the needless assignment of re_erroffset in the conf pool
by the worker threads; such mistakes break the shared copy-on-write pages of
memory that should have remained common between all httpd worker processes.

Two de-optimizations are inherent in this patch, the former ovector-on-stack
opportunity is lost unless implemented as a new general context. Safer that
we either create a new general context using pool allocation, or recycle a
per pool or per thread match_data buffer of some arbitrary 10 elts or so.

Submitted by: wrowe, Petr Pisar <ppisar@redhat.com>


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 *) mod_proxy: Honor a server scoped ProxyPass exception when ProxyPass is
     configured in <Location>, like in 2.2. PR 60458.
     [Eric Covener]



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The C-L header can be set in a fcgi/cgi backend or in other
filters like ap_content_length_filter (with the value of 0),
meanwhile the message-body can be returned incorrectly
by any backend. The idea is to remove unnecessary bytes
from a HTTP 204 response.

PR 51350


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 - avoid looping between ap_die and the http filter
 - remove the header that failed the check
 - keep calling apr_table_do until our fn stops matching


This is still not great. We get the original body, a 500 status
code and status line.

(r1773285 + fix for first return from check_headers)




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breaks some existing tests. Needs more work.



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 - avoid looping between ap_die and the http filter
 - remove the header that failed the check
 - keep calling apr_table_do until our fn stops matching


This is still not great. We get the original body, a 500 status
code and status line.


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with the same behavior in both of these cases. Simplify. Noted by rpluem.



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illegible protocol args to be rejected, irrespective of the strict toggle as
we expect this to occur with a garbage raw SP embedded in the request URI.

Simplifies the code using the protocol 0.9 sentinal to set up an http/1.0
error response.

String duplication of r1773158 is uninteresting, httpd-2.x has a const protocol
member.

Submitted by: rpluem, wrowe



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The apr_rmm_addr_get/apr_rmm_malloc() combination did not correctly
check for a malloc failure, leading to crashes when we ran out of the
limited space provided by AuthDigestShmemSize. This patch replaces all
these calls with a helper function that performs this check.

Additionally, fix a NULL-check bug during entry garbage collection.

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to prevent deciphering or tampering with a padding oracle attack.



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capitalize


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current examples don't account for when access control overlaps
with authentication.



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mod_http2: properly crafted, endless HTTP/2 CONTINUATION frames could be used to exhaust all server's memory.

Reported by: Naveen Tiwari <naveen.tiwari@asu.edu> and CDF/SEFCOM at Arizona State University



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