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Unchecked access of disablePageSizeChange #146
Description
Tried updating from 3.50.4-build1 to 3.51.2-build5 today. When attempting to use the KVVFS, SQLite WASM throws xFileControl [TypeError: Cannot read properties of undefined (reading 'disablePageSizeChange')]. If I edit the library's use of kvvfs.internal.disablePageSizeChange to kvvfs.internal?.disablePageSizeChange, all my tests pass, so the logic that reads disablePageSizeChange needs to be patched somehow, if not simply like this.
Reacted by Stephan Beal
Activity
jurerotar commentedon Jan 29, 2026
I can't help with this one, because it seems to be coming from upstream. :(
What I can do though, is create a test suite to make sure we catch this in the future. Since I don't use KVVFS API, could you check please #147, and if possible, add more test cases for features that I missed and you're more familiar with 😄
sgbeal commentedon Jan 30, 2026
Thank you for the report - i'll get that resolved today. You shouldn't need the patch you applied, but it is also harmless for the time being.
sgbeal commentedon Jan 30, 2026
Fixed in https://sqlite.org/src/info/407724c4e8:
The symbol
kvvfs.internalis only set when running kvvfs knows that it's running in a test build.kvvfsInternal, on the other hand, is scoped to that file regardless of test/non-test mode.tomayac commentedon Jan 30, 2026
Closing as fixed upstream. Thanks all!
DallasHoff commentedon Jan 31, 2026
Yes, thank you all :)