Guard against overly-long numeric formatting symbols from locale. to_char() allocates its output buffer with 8 bytes per formatting code in the pattern. If the locale's currency symbol, thousands separator, or decimal or sign symbol is more than 8 bytes long, in principle we could overrun the output buffer. No such locales exist in the real world, so it seems sufficient to truncate the symbol if we do see it's too long.
Reported-by: Xint Code Author: Tom Lane <[email protected]> Discussion: https://postgr.es/m/[email protected] Backpatch-through: 14 Branch ------ REL_16_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/e1e60f148a3aa937f1bf92dd50bb4b24051fd0e2 Modified Files -------------- src/backend/utils/adt/formatting.c | 61 +++++++++++++++++++++++++++----------- 1 file changed, 43 insertions(+), 18 deletions(-)
