CVE-2026-68393
CVE CVE-2026-68393EUVD EUVD-2026-55579Published 2026-08-10T12:04:12.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: extend conn_hash lookup critical sections Using RCU-protected pointers outside the critical sections without refcount is incorrect and may result to UAF. Extend critical section to cover both hci_conn_hash lookup and use of the returned conn. Add surrounding rcu_read_lock() also when return value is not used, in preparation for RCU lockdep requirement to hci_lookup_le_connect(). This avoids concurrent deletion of the conn before we are done dereferencing it. Also, make sure to hold hdev->lock when accessing hdev->accept_list.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.1.6; 6.14.6 <6.15; 6d0417e4e1cf66fd917f06f0454958362714ef7d <d5efd6e4b8b0634af6843178fe1a7dd2b2178a3d; 6.12.28 <6.13; 94bf6380e936339a700c0b3171a49baf512aa70b; patch: 6.18.42; 6.15; eb8b860e87b296bd1874c79a668081efd00f9754; patch: 0; 6d0417e4e1cf66fd917f06f0454958362714ef7d <83b7e67698d0b93f685875ce82c8d335436834f7; 6d0417e4e1cf66fd917f06f0454958362714ef7d <38326774df6198df0cc2744cc73bf77cb741c538; patch: 7.2-rc4
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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