Mercurial > hg > nginx
annotate auto/threads @ 7048:80224192163c
Resolver: fixed possible use-after-free while resolving SRV.
Resolving an SRV record includes resolving its host names in subrequests.
Previously, if memory allocation failed while reporting a subrequest result
after receiving a response from a DNS server, the SRV resolve handler was
called immediately with the NGX_ERROR state. However, if the SRV record
included another copy of the resolved name, it was reported once again.
This could trigger the use-after-free memory access after SRV resolve
handler freed the resolve context by calling ngx_resolve_name_done().
Now the SRV resolve handler is called only when all its subrequests are
completed.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Tue, 04 Jul 2017 18:07:29 +0300 |
parents | 466bd63b63d1 |
children | 04ebf29eaf5b |
rev | line source |
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6018
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1 |
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2 # Copyright (C) Nginx, Inc. |
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3 |
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4 |
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5 if [ $USE_THREADS = YES ]; then |
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6 |
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7 if [ "$NGX_PLATFORM" = win32 ]; then |
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8 cat << END |
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9 |
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10 $0: --with-threads is not supported on Windows |
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11 |
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12 END |
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13 exit 1 |
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14 fi |
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15 |
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16 have=NGX_THREADS . auto/have |
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17 CORE_DEPS="$CORE_DEPS $THREAD_POOL_DEPS" |
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18 CORE_SRCS="$CORE_SRCS $THREAD_POOL_SRCS" |
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19 CORE_LIBS="$CORE_LIBS -lpthread" |
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20 fi |