Mercurial > hg > nginx-quic
annotate auto/nohave @ 6574:7eb19447b2de
Core: skip special buffers on writing (ticket #981).
A special last buffer with cl->buf->pos set to NULL can be present in
a chain when writing request body if chunked encoding was used. This
resulted in a NULL pointer dereference if it happened to be the only
buffer left after a do...while loop iteration in ngx_write_chain_to_file().
The problem originally appeared in nginx 1.3.9 with chunked encoding
support. Additionally, rev. 3832b608dc8d (nginx 1.9.13) changed the
minimum number of buffers to trigger this from IOV_MAX (typically 1024)
to NGX_IOVS_PREALLOCATE (typically 64).
Fix is to skip such buffers in ngx_chain_to_iovec(), much like it is
done in other places.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 31 May 2016 05:13:30 +0300 |
parents | d620f497c50f |
children |
rev | line source |
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444
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1 |
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
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4 |
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5 |
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6 cat << END >> $NGX_AUTO_CONFIG_H |
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7 |
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8 #ifndef $have |
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9 #define $have 0 |
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10 #endif |
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11 |
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12 END |