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(parent: 75d02d7) | 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 04:48:39 +0000 (00:48 -0400)
commita54875602a057f8ee0cf5e880bfe2056b5dd11f0
treec5c1c51babe3f89a911f03fdd5fd62a7ef98f671tree | snapshot
parent75d02d787804f643af09abcc87ade5c0b990b2b6commit | 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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