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c61d51d50006a2a7bfe25d62ea0677e318febedc
postgres/src/backend/utils/adt
History
Peter Eisentraut c61d51d500 Detect buffer underflow in get_th() 
Input with zero length can result in a buffer underflow when
accessing *(num + (len - 1)), as (len - 1) would produce a negative
index.  Add an assertion for zero-length input to prevent it.

This was found by ALT Linux Team.

Reviewing the call sites shows that get_th() currently cannot be
applied to an empty string: it is always called on a string containing
a number we've just printed.  Therefore, an assertion rather than a
user-facing error message is sufficient.

Co-authored-by: Alexander Kuznetsov <kuznetsovam@altlinux.org>
Discussion: https://www.postgresql.org/message-id/flat/e22df993-cdb4-4d0a-b629-42211ebed582@altlinux.org
2025-08-18 11:03:22 +02:00
..
.gitignore
Build all Flex files standalone
2022-09-04 12:09:01 +07:00
acl.c
Fix inconsistent quoting of role names in ACLs.
2025-07-11 18:50:13 -04:00
amutils.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
array_expanded.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
array_selfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
array_typanalyze.c
Add is_analyze parameter to vacuum_delay_point().
2025-02-11 16:38:14 -06:00
array_userfuncs.c
Introduce a SQL-callable function array_sort(anyarray).
2025-04-01 18:03:55 -04:00
arrayfuncs.c
Grab the low-hanging fruit from forcing USE_FLOAT8_BYVAL to true.
2025-08-13 17:18:22 -04:00
arraysubs.c
Allow extension functions to participate in in-place updates.
2025-02-11 12:49:34 -05:00
arrayutils.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
ascii.c
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2025-01-01 11:21:55 -05:00
bool.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
bytea.c
Speed up byteain by not parsing traditional-style input twice.
2025-07-18 16:42:10 -04:00
cash.c
Fix an assortment of spelling mistakes and typos
2025-01-02 12:42:01 +13:00
char.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
cryptohashfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
date.c
Break out xxx2yyy_opt_overflow APIs for more datetime conversions.
2025-07-03 16:17:08 -04:00
datetime.c
Tighten parsing of datetime input.
2025-05-28 15:10:48 -04:00
datum.c
Add missing Datum conversions
2025-08-08 22:06:57 +02:00
dbsize.c
Change relpath() et al to return path by value
2025-02-25 09:02:07 -05:00
domains.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
encode.c
Speed up hex_encode with bytewise lookup
2025-01-17 16:29:25 +07:00
enum.c
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2025-01-01 11:21:55 -05:00
expandeddatum.c
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2025-01-01 11:21:55 -05:00
expandedrecord.c
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2025-01-01 11:21:55 -05:00
float.c
Allow width_bucket()'s "operand" input to be NaN.
2025-07-02 11:34:40 -04:00
format_type.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
formatting.c
Detect buffer underflow in get_th()
2025-08-18 11:03:22 +02:00
genfile.c
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2025-01-01 11:21:55 -05:00
geo_ops.c
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2025-01-01 11:21:55 -05:00
geo_selfuncs.c
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2025-01-01 11:21:55 -05:00
geo_spgist.c
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2025-01-01 11:21:55 -05:00
hbafuncs.c
Add support for OAUTHBEARER SASL mechanism
2025-02-20 16:25:17 +01:00
inet_cidr_ntop.c
Avoid conflicts with library versions of inet_net_ntop() and friends.
2019-08-18 19:27:23 -04:00
inet_net_pton.c
Use pg_ascii_tolower()/pg_ascii_toupper() where appropriate.
2025-07-01 07:24:23 -07:00
int8.c
Grab the low-hanging fruit from forcing USE_FLOAT8_BYVAL to true.
2025-08-13 17:18:22 -04:00
int.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
json.c
Remove useless/superfluous Datum conversions
2025-08-08 22:06:57 +02:00
jsonb_gin.c
Fix varatt versus Datum type confusions
2025-08-05 12:11:36 +02:00
jsonb_op.c
Fix varatt versus Datum type confusions
2025-08-05 12:11:36 +02:00
jsonb_util.c
Clarify the ra != rb case in compareJsonbContainers().
2025-07-15 18:21:12 -04:00
jsonb.c
Fix copy-paste error in datum_to_jsonb_internal()
2025-03-13 09:56:36 +09:00
jsonbsubs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
jsonfuncs.c
Mop-up for Datum conversion cleanups.
2025-08-08 18:44:57 -04:00
jsonpath_exec.c
Add missing Datum conversions
2025-08-08 22:06:57 +02:00
jsonpath_gram.y
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2025-01-01 11:21:55 -05:00
jsonpath_internal.h
Update copyright for 2025
2025-01-01 11:21:55 -05:00
jsonpath_scan.l
flex code modernization: Replace YY_EXTRA_TYPE define with flex option
2025-01-06 09:47:58 +01:00
jsonpath.c
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2025-01-01 11:21:55 -05:00
levenshtein.c
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2025-01-01 11:21:55 -05:00
like_match.c
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2025-01-01 11:21:55 -05:00
like_support.c
Control ctype behavior internally with a method table.
2025-07-01 07:44:47 -07:00
like.c
Control ctype behavior internally with a method table.
2025-07-01 07:44:47 -07:00
lockfuncs.c
Add missing Datum conversions
2025-08-08 22:06:57 +02:00
mac8.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
mac.c
Grab the low-hanging fruit from forcing sizeof(Datum) to 8.
2025-08-13 17:18:22 -04:00
Makefile
Move SQL-callable code related to multixacts into its own file
2025-08-18 14:57:55 +09:00
mcxtfuncs.c
Sync typedefs.list with the buildfarm.
2025-06-15 13:04:24 -04:00
meson.build
Move SQL-callable code related to multixacts into its own file
2025-08-18 14:57:55 +09:00
misc.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
multirangetypes_selfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
multirangetypes.c
Add missing Datum conversions
2025-08-08 22:06:57 +02:00
multixactfuncs.c
Move SQL-callable code related to multixacts into its own file
2025-08-18 14:57:55 +09:00
name.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
network_gist.c
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2025-01-01 11:21:55 -05:00
network_selfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
network_spgist.c
Remove unused #include's in src/backend/utils/adt/*
2025-06-30 12:00:00 +02:00
network.c
Grab the low-hanging fruit from forcing sizeof(Datum) to 8.
2025-08-13 17:18:22 -04:00
numeric.c
Grab the low-hanging fruit from forcing USE_FLOAT8_BYVAL to true.
2025-08-13 17:18:22 -04:00
numutils.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
oid.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
oracle_compat.c
Add SQL function CASEFOLD().
2025-01-24 14:56:22 -08:00
orderedsetaggs.c
Grab the low-hanging fruit from forcing USE_FLOAT8_BYVAL to true.
2025-08-13 17:18:22 -04:00
partitionfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
pg_locale_builtin.c
Remove provider field from pg_locale_t.
2025-07-01 07:50:46 -07:00
pg_locale_icu.c
Remove provider field from pg_locale_t.
2025-07-01 07:50:46 -07:00
pg_locale_libc.c
Change wchar2char() and char2wchar() to accept a locale_t.
2025-07-09 08:45:34 -07:00
pg_locale.c
Control ctype behavior internally with a method table.
2025-07-01 07:44:47 -07:00
pg_lsn.c
Standardize LSN formatting by zero padding
2025-07-07 13:57:43 +02:00
pg_upgrade_support.c
Preserve conflict-relevant data during logical replication.
2025-07-23 02:56:00 +00:00
pgstatfuncs.c
Detect and report update_deleted conflicts.
2025-08-04 04:02:47 +00:00
pseudorandomfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
pseudotypes.c
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2025-01-01 11:21:55 -05:00
quote.c
Clarify comment for worst-case allocation in quote_literal_cstr()
2025-04-07 10:02:12 +09:00
rangetypes_gist.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
rangetypes_selfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
rangetypes_spgist.c
Add missing Datum conversions
2025-08-08 22:06:57 +02:00
rangetypes_typanalyze.c
Grab the low-hanging fruit from forcing USE_FLOAT8_BYVAL to true.
2025-08-13 17:18:22 -04:00
rangetypes.c
Mop-up for Datum conversion cleanups.
2025-08-08 18:44:57 -04:00
regexp.c
Fix conversion of SIMILAR TO regexes for character classes
2025-05-28 08:58:40 +09:00
regproc.c
Add new OID alias type regdatabase.
2025-06-30 15:38:54 -05:00
ri_triggers.c
Remove unused #include's in src/backend/utils/adt/*
2025-06-30 12:00:00 +02:00
rowtypes.c
Add missing Datum conversions
2025-08-08 22:06:57 +02:00
ruleutils.c
Fix deparsing FETCH FIRST <expr> ROWS WITH TIES
2025-05-19 18:50:26 +03:00
selfuncs.c
Fix security checks in selectivity estimation functions.
2025-08-11 09:03:11 +01:00
skipsupport.c
Add nbtree skip scan optimization.
2025-04-04 12:27:04 -04:00
tid.c
Update comment
2025-07-29 18:57:14 +02:00
timestamp.c
Grab the low-hanging fruit from forcing sizeof(Datum) to 8.
2025-08-13 17:18:22 -04:00
trigfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
tsginidx.c
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2025-01-01 11:21:55 -05:00
tsgistidx.c
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2025-01-01 11:21:55 -05:00
tsquery_cleanup.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
tsquery_gist.c
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2025-01-01 11:21:55 -05:00
tsquery_op.c
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2025-01-01 11:21:55 -05:00
tsquery_rewrite.c
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2025-01-01 11:21:55 -05:00
tsquery_util.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
tsquery.c
Fix comment of tsquerysend()
2025-05-11 09:47:10 -04:00
tsrank.c
Fix grammatical typos around possessive "its"
2025-01-29 14:39:14 +07:00
tsvector_op.c
Fix varatt versus Datum type confusions
2025-08-05 12:11:36 +02:00
tsvector_parser.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
tsvector.c
Remove unnecessary type violation in tsvectorrecv().
2025-04-02 16:17:43 -04:00
uuid.c
Fix constant when extracting timestamp from UUIDv7.
2025-08-15 11:58:53 -07:00
varbit.c
backend libpq void * argument for binary data
2025-02-23 14:27:02 +01:00
varchar.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
varlena.c
Grab the low-hanging fruit from forcing sizeof(Datum) to 8.
2025-08-13 17:18:22 -04:00
version.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
waitfuncs.c
Add missing Datum conversions
2025-08-08 22:06:57 +02:00
windowfuncs.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
xid8funcs.c
Use PRI?64 instead of "ll?" in format strings (continued).
2025-03-29 10:43:57 +01:00
xid.c
Update copyright for 2025
2025-01-01 11:21:55 -05:00
xml.c
Remove unnecessary complication around xmlParseBalancedChunkMemory.
2025-07-29 12:47:38 -04:00