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(parent: 298d1f8) | patch
Fix some possible low-memory failures in regexp compilation.
authorTom Lane <tgl@sss.pgh.pa.us>
Wed, 12 Aug 2015 04:48:11 +0000 (00:48 -0400)
committerTom Lane <tgl@sss.pgh.pa.us>
Wed, 12 Aug 2015 04:48:54 +0000 (00:48 -0400)
commit7e23b63bd8e0776f90c915d72fced4215eefadb0
tree515b2622a0b98dfd930d82dfc15647a0a19cd809tree | snapshot
parent298d1f80805ee9aed728fc2240b70476370c8100commit | diff
Fix some possible low-memory failures in regexp compilation.

newnfa() failed to set the regex error state when malloc() fails.
Several places in regcomp.c failed to check for an error after calling
subre().  Each of these mistakes could lead to null-pointer-dereference
crashes in memory-starved backends.

Report and patch by Andreas Seltenreich.  Back-patch to all branches.
src/backend/regex/regc_nfa.c diff | blob | history
src/backend/regex/regcomp.c diff | blob | history
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