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High severity8.8NVD Advisory· Published Aug 28, 2026· Updated Aug 30, 2026

CVE-2026-80721

CVE-2026-80721

Description

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: ISO: ensure no dangling hcon references in iso_conn

After iso_conn_del(), ISO sockets should not dereference the hcon any more. Currently, clearing iso_conn::hcon relies on iso_conn_del() releasing the last reference to the iso_conn.

Simplify this by explicitly clearing conn->hcon in iso_conn_del(), to avoid more complex reasoning on races about who holds the last reference.

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Affected products

16

Patches

Vulnerability mechanics

References

3

News mentions

1