database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-27 23:21:58 +03:00
Code Activity

Stop reading uninitialized memory in heap_inplace_lock().

Browse Source 
Stop computing a never-used value.  This removes the read; the read had
no functional implications.  Back-patch to v12, like commit
a07e03fd8f.

Reported by Alexander Lakhin.

Discussion: https://postgr.es/m/6c92f59b-f5bc-e58c-9bdd-d1f21c17c786@gmail.com
This commit is contained in:
Noah Misch
2024-10-24 09:16:14 -07:00
parent af4e342034
commit d34ffbaa10
3 changed files with 33 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/backend/access/heap/heapam.c
View File

@ -6229,10 +6229,9 @@ heap_inplace_lock(Relation relation,
LockTupleMode lockmode = LockTupleNoKeyExclusive;
MultiXactStatus mxact_status = MultiXactStatusNoKeyUpdate;
int remain;
bool current_is_member;
if (DoesMultiXactIdConflict((MultiXactId) xwait, infomask,
lockmode, &current_is_member))
lockmode, NULL))
{
LockBuffer(buffer, BUFFER_LOCK_UNLOCK);
ret = false;