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postgresql/src/common
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Tom Lane cfa4eba02c Improve pglz_decompress's defenses against corrupt compressed data. 
When processing a match tag, check to see if the claimed "off"
is more than the distance back to the output buffer start.
If it is, then the data is corrupt, and what's more we would
fetch from outside the buffer boundaries and potentially incur
a SIGSEGV.  (Although the odds of that seem relatively low, given
that "off" can't be more than 4K.)

Back-patch to v13; before that, this function wasn't really
trying to protect against bad data.

Report and fix by Flavien Guedez.

Discussion: https://postgr.es/m/01fc0593-e31e-463d-902c-dd43174acee2@oopacity.net
 		2023-10-18 20:43:17 -04:00
..
unicode meson: Add dependencies to perl modules to various script invocations 2023-06-09 20:12:16 -07:00
.gitignore Replace the data structure used for keyword lookup. 2019-01-06 17:02:57 -05:00
Makefile Revert refactoring of restore command code to shell_restore.c 2023-02-06 08:28:42 +09:00
archive.c Revert refactoring of restore command code to shell_restore.c 2023-02-06 08:28:42 +09:00
base64.c Fix small overestimation of base64 encoding output length. 2023-06-08 11:24:31 -04:00
checksum_helper.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
compression.c Message style improvements 2023-05-19 18:45:29 +02:00
config_info.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
controldata_utils.c Try to handle torn reads of pg_control in frontend. 2023-10-16 17:21:41 +13:00
cryptohash.c Improve/correct comments 2023-03-09 09:59:46 +01:00
cryptohash_openssl.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
d2s.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
d2s_full_table.h Update copyright for 2023 2023-01-02 15:00:37 -05:00
d2s_intrinsics.h Update copyright for 2023 2023-01-02 15:00:37 -05:00
digit_table.h Change floating-point output format for improved performance. 2019-02-13 15:20:33 +00:00
encnames.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
exec.c Implement find_my_exec()'s path normalization using realpath(3). 2023-03-23 18:17:49 -04:00
f2s.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
fe_memutils.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
file_perm.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
file_utils.c Introduce PG_IO_ALIGN_SIZE and align all I/O buffers. 2023-04-08 16:34:50 +12:00
hashfn.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
hmac.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
hmac_openssl.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
ip.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
jsonapi.c Fix JSON error reporting for many cases of erroneous string values. 2023-03-13 15:19:00 -04:00
keywords.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
kwlookup.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
link-canary.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
logging.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
md5.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
md5_common.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
md5_int.h Update copyright for 2023 2023-01-02 15:00:37 -05:00
meson.build meson: Add dependencies to perl modules to various script invocations 2023-06-09 20:12:16 -07:00
percentrepl.c Fix error message wordings 2023-05-17 21:33:47 +02:00
pg_get_line.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
pg_lzcompress.c Improve pglz_decompress's defenses against corrupt compressed data. 2023-10-18 20:43:17 -04:00
pg_prng.c Invent random_normal() to provide normally-distributed random numbers. 2023-01-09 12:44:00 -05:00
pgfnames.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
protocol_openssl.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
psprintf.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
relpath.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
restricted_token.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
rmtree.c Message style improvements 2023-05-19 18:45:29 +02:00
ryu_common.h Update copyright for 2023 2023-01-02 15:00:37 -05:00
saslprep.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
scram-common.c Make SCRAM iteration count configurable 2023-03-27 09:46:29 +02:00
sha1.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
sha1_int.h Update copyright for 2023 2023-01-02 15:00:37 -05:00
sha2.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
sha2_int.h Update copyright for 2023 2023-01-02 15:00:37 -05:00
sprompt.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
string.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
stringinfo.c Use appendStringInfoSpaces in more places 2023-01-20 13:07:24 +13:00
unicode_norm.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
username.c Update copyright for 2023 2023-01-02 15:00:37 -05:00
wait_error.c Add SHELL_ERROR and SHELL_EXIT_CODE magic variables to psql. 2023-03-21 13:03:56 -04:00
wchar.c Update copyright for 2023 2023-01-02 15:00:37 -05:00