Reject out-of-range numeric timezone specifications.
In commit 631dc390f49909a5c8ebd6002cfb2bcee5415a9d, we started to handle
simple numeric timezone offsets via the zic library instead of the old
CTimeZone/HasCTZSet kluge. However, we overlooked the fact that the zic
code will reject UTC offsets exceeding a week (which seems a bit arbitrary,
but not because it's too tight ...). This led to possibly setting
session_timezone to NULL, which results in crashes in most timezone-related
operations as of 9.4, and crashes in a small number of places even before
that. So check for NULL return from pg_tzset_offset() and report an
appropriate error message. Per bug #11014 from Duncan Gillis.
Back-patch to all supported branches, like the previous patch.
(Unfortunately, as of today that no longer includes 8.4.)
Branch
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REL9_4_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/ecb2d583ca6b248a94c8b53e74dac1ec863a4db7
Modified Files
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src/backend/commands/variable.c | 7 +++++++
src/timezone/pgtz.c | 3 +++
2 files changed, 10 insertions(+)