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Bug#25471090: MYSQL USE AFTER FREE

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in a specially crafted invalid packet, one can get end_pos < pos here
This commit is contained in:
Sergei Golubchik
2018-04-19 22:39:24 +02:00
parent 149c993b2c
commit 7828ba0df4
1 changed files with 1 additions and 1 deletions
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2
sql-common/client.c
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@ -1708,7 +1708,7 @@ read_one_row(MYSQL *mysql,uint fields,MYSQL_ROW row, ulong *lengths)
}
else
{
if (len > (ulong) (end_pos - pos))
if (pos + len > end_pos)
{
set_mysql_error(mysql, CR_UNKNOWN_ERROR, unknown_sqlstate);
return -1;