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_17_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/c97a2861851d3f92fb235ec80bd426b3f5a3d28c Modified Files -------------- src/backend/utils/adt/formatting.c | 61 +++++++++++++++++++++++++++----------- 1 file changed, 43 insertions(+), 18 deletions(-)
