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(parent: 58d2e7f) | 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 04:48:28 +0000 (00:48 -0400)
commitc5bfcc18a09b3f56ae0fd434ff6c72bd185949c1
tree5143c45333fb13aa05c582482d963e21acaa442btree | snapshot
parent58d2e7fb70584598e026a39f515c5f3c5e589857commit | 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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