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| author | Bruce Momjian <bruce@momjian.us> | 2014-01-30 09:41:43 -0500 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2014-01-30 09:41:43 -0500 |
| commit | 146604ec43bcd6f977c31775a91022cf9737daf5 (patch) | |
| tree | 2b8f94e63f29c968c77e31075d3648fb9033a923 /src/backend/utils/adt/datetime.c | |
| parent | 571addd729a400cece396d79696adcc63387e43b (diff) | |
| download | postgresql-146604ec43bcd6f977c31775a91022cf9737daf5.tar.gz postgresql-146604ec43bcd6f977c31775a91022cf9737daf5.zip | |
Add checks for interval overflow/underflow
New checks include input, month/day/time internal adjustments, addition,
subtraction, multiplication, and negation. Also adjust docs to
correctly specify interval size in bytes.
Report from Rok Kralj
Diffstat (limited to 'src/backend/utils/adt/datetime.c')
| -rw-r--r-- | src/backend/utils/adt/datetime.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c index a61b40e17f9..946adfad997 100644 --- a/src/backend/utils/adt/datetime.c +++ b/src/backend/utils/adt/datetime.c @@ -2976,6 +2976,9 @@ DecodeInterval(char **field, int *ftype, int nf, int range, type = DTK_MONTH; if (*field[i] == '-') val2 = -val2; + if (((double)val * MONTHS_PER_YEAR + val2) > INT_MAX || + ((double)val * MONTHS_PER_YEAR + val2) < INT_MIN) + return DTERR_FIELD_OVERFLOW; val = val * MONTHS_PER_YEAR + val2; fval = 0; } |