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[NTOSKRNL:FSRTL] Fix memory corruption when pruning tunnel cache

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This commit is contained in:
Jérôme Gardou
2020-12-04 16:02:26 +01:00
parent 3ec3e1a7f6
commit 0db79d4aa9
1 changed files with 4 additions and 3 deletions
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7
ntoskrnl/fsrtl/tunnel.c
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@@ -42,7 +42,7 @@ FsRtlFreeTunnelNode(
{
if (PoolList)
{
/* divert the linked list entry, it's not required anymore, but we need it */
/* divert the linked list entry, it's not required anymore, but we need it */
InsertHeadList(PoolList, &CurEntry->TimerQueueEntry);
return;
}
@@ -124,7 +124,8 @@ FsRtlPruneTunnelCache(
/* If we have too many entries */
while (Cache->NumEntries > TunnelMaxEntries)
{
CurEntry = CONTAINING_RECORD(Entry, TUNNEL_NODE_ENTRY, TimerQueueEntry);
ASSERT(!IsListEmpty(&Cache->TimerQueue));
CurEntry = CONTAINING_RECORD(Cache->TimerQueue.Flink, TUNNEL_NODE_ENTRY, TimerQueueEntry);
FsRtlRemoveNodeFromTunnel(Cache, CurEntry, PoolList, &Rebalance);
}
}
@@ -477,7 +478,7 @@ FsRtlAddToTunnelCache(IN PTUNNEL Cache,
RtlInsertAsRightChild(RtlParent(CurEntry), NodeEntry);
}
}
/* remove entry */
RemoveEntryList(&((PTUNNEL_NODE_ENTRY)CurEntry)->TimerQueueEntry);