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Validate input string length

pull/6763/head^2
Gokhan Gulbiz 2023-03-13 12:44:57 +03:00
parent eaa896e744
commit 6d8cd8a9a0
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GPG Key ID: 608EF06B6BD1B45B
1 changed files with 8 additions and 3 deletions
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11
src/backend/distributed/utils/attribute.c
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@ -676,8 +676,13 @@ MultiTenantMonitorshmemSize(void)
static char * static char *
extractTopComment(const char *inputString) extractTopComment(const char *inputString)
{ {
int i = 0; int commentStartCharsLength = 2;
if (strlen(inputString) < commentStartCharsLength )
{
return NULL;
}
int i = 0;
/* If query starts with a comment */ /* If query starts with a comment */
if (inputString[i] == '/' && inputString[i + 1] == '*') if (inputString[i] == '/' && inputString[i + 1] == '*')
{ {
@ -689,9 +694,9 @@ extractTopComment(const char *inputString)
} }
} }
if (i > 2) if (i > commentStartCharsLength)
{ {
return get_substring(inputString, 2, i); return get_substring(inputString, commentStartCharsLength, i);
} }
else else
{ {