CVE-2026-80721
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Linux
PublishedAug 28, 2026
First seenAug 28, 2026
How to fix
Update
- Linux Linuxe941799c31f68e67ce0976efb38a79101f921b64, cdce8af9291d8a1f8916c271de029bf558d9e8ec, aa9f7cb2bd3a2be998ceb739fc9a2f986eba43eb, 6.12, 6.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | dc26097bdb864a0d5955b9a25e43376ffc1af99b ≤ v < e941799c31f68e67ce0976efb38a79101f921b64, dc26097bdb864a0d5955b9a25e43376ffc1af99b ≤ v < cdce8af9291d8a1f8916c271de029bf558d9e8ec, dc26097bdb864a0d5955b9a25e43376ffc1af99b ≤ v < aa9f7cb2bd3a2be998ceb739fc9a2f986eba43eb, f53e7489273dc2bb307bf50f319b3762d45534f0, a58d0f5dac322e16cc75334d000666512341bde5, 6.11.11 ≤ v < 6.12, 6.12.2 ≤ v < 6.13, 6.13 | e941799c31f68e67ce0976efb38a79101f921b64, cdce8af9291d8a1f8916c271de029bf558d9e8ec, aa9f7cb2bd3a2be998ceb739fc9a2f986eba43eb, 6.12, 6.13 |
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