b1c60b4f154c803e8c7eec4cb2db71ac4c0624dd
71%

Ran 17 Jul 2026 08:29PM UTC

Jobs 1

Files 32

Run time 1min

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Committed 17 Jul 2026 08:24PM UTC coverage: 70.48%. Remained the same

Build # b1c60b4f154c803e8c7eec4cb2db71ac4c0624dd

Build Type

push

github

Committed by

dimitarvp

Commit Message

fix use-after-move in blob resource teardown

The blob resource stored a rusqlite Blob wrapper, which holds a real
&Connection and dereferences it on Drop. Once an explicit connection
close moves the Connection out of its Option slot and drops it, that
deref reads moved-from memory — a use-after-move reachable both from the
shipped blob_close path and from GC-drop of a live blob whose connection
was closed. It is latent today (the bytes read benignly), but a
different Option layout would panic in Drop, and rustler 0.38 resource
destructors have no catch_unwind, so that panic would unwind into C and
crash the BEAM.

The blob now owns only a raw sqlite3_blob pointer plus the connection
ResourceArc, mirroring the stream and statement resources: every
operation runs under the connection Mutex and no &Connection is ever
dereferenced on any teardown path. Closing after the connection is
closed stays sound because an open blob keeps the db alive at
SQLITE_BUSY. Observable behavior is unchanged.

A standalone Miri model under native/xqlitenif/miri proves the old
pattern is undefined behavior; it is deliberately outside the crate
build and the test suite.

Coverage Stats

573 of 813 relevant lines covered (70.48%)

36.55 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	b1c60b4f154c803e8c7eec4cb2db71ac4c0624dd.1	17 Jul 2026 08:29PM UTC	32	70.48	GitHub Action Run

dimitarvp / xqlite / b1c60b4f154c803e8c7eec4cb2db71ac4c0624dd
71%

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dimitarvp / xqlite / b1c60b4f154c803e8c7eec4cb2db71ac4c0624dd 71%

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dimitarvp / xqlite / b1c60b4f154c803e8c7eec4cb2db71ac4c0624dd
71%

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