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-rw-r--r--src/backend/postmaster/postmaster.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index d1e9ad2ec4a..0a33479efdd 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -2075,6 +2075,13 @@ ProcessStartupPacket(Port *port, bool ssl_done, bool gss_done)
if (proto == CANCEL_REQUEST_CODE)
{
+ if (len != sizeof(CancelRequestPacket))
+ {
+ ereport(COMMERROR,
+ (errcode(ERRCODE_PROTOCOL_VIOLATION),
+ errmsg("invalid length of startup packet")));
+ return STATUS_ERROR;
+ }
processCancelRequest(port, buf);
/* Not really an error, but we don't want to proceed further */
return STATUS_ERROR;