jni: Avoid forming &mut when destroying a bridged handle

F-LIBSIGNAL-JNI-DESTROY-UB-001

Public snapshot: 8 Oct 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

Recorded evidence

—score not recorded

signalapp/libsignalReported fixsignalapp/libsignal

jni: Avoid forming &mut when destroying a bridged handle

fixed publicly

details

Finding IDs: F-LIBSIGNAL-JNI-DESTROY-UB-001
Status: fixed publicly
Reported via: security contact
Note: public fix commit 895b07944839 on 2026-03-13, first released in v0.89.0 on 2026-03-17.
CVE assignment: CVE requested; assignment pending
CVE request basis: researcher-confirmed submission; authority: MITRE; recorded 2026-10-06. No assigned CVE recorded; submission does not imply acceptance or assignment.

F-LIBSIGNAL-JNI-DESTROY-UB-001: Memory safety. JNI destruction violates mutable-reference lifetime/aliasing requirements. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-LIBSIGNAL-JNI-DESTROY-UB-001

Security area (1seal assessment): Memory safety. JNI handle destruction avoids forming an unnecessary mutable reference, reducing invalid aliasing and lifetime assumptions. Reviewed 21 Sep 2026.

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