Operational Defect Database
BugZero found this defect 910 days ago.
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Microsoft SQL Server | 14134000
Fixes an issue where the CollectPageLatchFields can cause an access violation (AV) under certain timing conditions when the latch_suspend_end XEvent is turned on. The underlying reason is that this method assumes the Buffer is stable under the latch, which isn't true if the Buffer isn't in the Hashtable anymore. This hotfix avoids the AV by checking whether the Buffer is still in the Hashtable before accessing its underlying fields.
Last update date:
11/22/2021
Affected products:
SQL Server 2019 on Linux
SQL Server 2019 on Windows
Affected releases:
build lower than 15.0.4188.2
Fixed releases:
15.0.4188.2
Description:
Fixes an issue where the CollectPageLatchFields can cause an access violation (AV) under certain timing conditions when the latch_suspend_end XEvent is turned on. The underlying reason is that this method assumes the Buffer is stable under the latch, which isn't true if the Buffer isn't in the Hashtable anymore. This hotfix avoids the AV by checking whether the Buffer is still in the Hashtable before accessing its underlying fields.
