Backport #99042 to 26.2: Fix crash in CachedOnDiskReadBufferFromFile destructor#99235
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clickhouse-gh[bot] merged 1 commit into26.2from Mar 11, 2026
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Backport #99042 to 26.2: Fix crash in CachedOnDiskReadBufferFromFile destructor#99235clickhouse-gh[bot] merged 1 commit into26.2from
clickhouse-gh[bot] merged 1 commit into26.2from
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Workflow [BackportPR], commit [7e85554] Summary: ✅ |
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Original pull-request #99042
Cherry-pick pull-request #99234
This pull-request is a last step of an automated backporting.
Treat it as a standard pull-request: look at the checks and resolve conflicts.
Merge it only if you intend to backport changes to the target branch, otherwise just close it.
The PR source
The PR is created in the CI job
Note
Low Risk
Low risk: adds a null-check before using
stateduring destructor logging to prevent a crash; no behavior changes to caching or IO flow beyond skipping the log when state is unset.Overview
Fixes a destructor crash in
CachedOnDiskReadBufferFromFileby guarding filesystem cache log emission with an additionalstatecheck.If the buffer is destroyed before
stateis initialized, the destructor now skipsappendFilesystemCacheLog(...)instead of dereferencing a nullstate.Written by Cursor Bugbot for commit 7e85554. This will update automatically on new commits. Configure here.