diff options
Diffstat (limited to 'src/backend/access/transam/xlogreader.c')
| -rw-r--r-- | src/backend/access/transam/xlogreader.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/backend/access/transam/xlogreader.c b/src/backend/access/transam/xlogreader.c index f2b268d2368..4ac8fc239ad 100644 --- a/src/backend/access/transam/xlogreader.c +++ b/src/backend/access/transam/xlogreader.c @@ -380,6 +380,15 @@ restart: } else { + /* There may be no next page if it's too small. */ + if (total_len < SizeOfXLogRecord) + { + report_invalid_record(state, + "invalid record length at %X/%X: wanted %u, got %u", + (uint32) (RecPtr >> 32), (uint32) RecPtr, + (uint32) SizeOfXLogRecord, total_len); + goto err; + } /* We'll validate the header once we have the next page. */ gotheader = false; } @@ -795,6 +804,8 @@ ValidXLogRecord(XLogReaderState *state, XLogRecord *record, XLogRecPtr recptr) { pg_crc32c crc; + Assert(record->xl_tot_len >= SizeOfXLogRecord); + /* Calculate the CRC */ INIT_CRC32C(crc); COMP_CRC32C(crc, ((char *) record) + SizeOfXLogRecord, record->xl_tot_len - SizeOfXLogRecord); |