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Commitec3a1af

Browse files
author
Neil Conway
committed
Fix a potential backend crash during authentication when parsing a
malformed ident map file. This was introduced by the linked listrewrite in 8.0 -- mea maxima culpa.Per Coverity static analysis performed by EnterpriseDB.
1 parent09d1110 commitec3a1af

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1 file changed

+9
-16
lines changed

1 file changed

+9
-16
lines changed

‎src/backend/libpq/hba.c‎

Lines changed: 9 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -10,7 +10,7 @@
1010
*
1111
*
1212
* IDENTIFICATION
13-
* $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.140 2005/02/26 18:43:33 tgl Exp $
13+
* $PostgreSQL: pgsql/src/backend/libpq/hba.c,v 1.141 2005/06/21 01:20:09 neilc Exp $
1414
*
1515
*-------------------------------------------------------------------------
1616
*/
@@ -1135,16 +1135,16 @@ parse_ident_usermap(List *line, int line_number, const char *usermap_name,
11351135
token=lfirst(line_item);
11361136
file_map=token;
11371137

1138-
/* Get the ident user token(must be provided)*/
1138+
/* Get the ident user token */
11391139
line_item=lnext(line_item);
1140-
if (!line)
1140+
if (!line_item)
11411141
gotoident_syntax;
11421142
token=lfirst(line_item);
11431143
file_ident_user=token;
11441144

11451145
/* Get the PG username token */
11461146
line_item=lnext(line_item);
1147-
if (!line)
1147+
if (!line_item)
11481148
gotoident_syntax;
11491149
token=lfirst(line_item);
11501150
file_pguser=token;
@@ -1154,21 +1154,14 @@ parse_ident_usermap(List *line, int line_number, const char *usermap_name,
11541154
strcmp(file_pguser,pg_user)==0&&
11551155
strcmp(file_ident_user,ident_user)==0)
11561156
*found_p= true;
1157+
11571158
return;
11581159

11591160
ident_syntax:
1160-
if (line_item)
1161-
ereport(LOG,
1162-
(errcode(ERRCODE_CONFIG_FILE_ERROR),
1163-
errmsg("invalid entry in file \"%s\" at line %d, token \"%s\"",
1164-
IdentFileName,line_number,
1165-
(constchar*)lfirst(line_item))));
1166-
else
1167-
ereport(LOG,
1168-
(errcode(ERRCODE_CONFIG_FILE_ERROR),
1169-
errmsg("missing entry in file \"%s\" at end of line %d",
1170-
IdentFileName,line_number)));
1171-
1161+
ereport(LOG,
1162+
(errcode(ERRCODE_CONFIG_FILE_ERROR),
1163+
errmsg("missing entry in file \"%s\" at end of line %d",
1164+
IdentFileName,line_number)));
11721165
*error_p= true;
11731166
}
11741167

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