pgsql: Fix some possible low-memory failures in regexp compilation. - Mailing list pgsql-committers

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.

Branch
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REL9_2_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/234205a2e34464a9aabc9ab5e65692652f8fc910

Modified Files
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src/backend/regex/regc_nfa.c |    3 +++
src/backend/regex/regcomp.c  |    3 +++
2 files changed, 6 insertions(+)