CVE-2026-74539: Bluetooth: ISO: lock sk in iso_sock_getname

Severity: high (CVSS 8.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-15 · updated 2026-10-16

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in iso_sock_getname Accessing iso_pi(sk)->conn requires lock_sock, which is not held here. Fix by adding the lock/release.

Affected products

Linux kernel: 6.16 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/202670e6602e068558c1fca2df40719ee91a2906
https://git.kernel.org/stable/c/72d5bb1d77d7c3330146dc0cfd43f704c64b9594
https://git.kernel.org/stable/c/89cf154d7c18e6e94a3da83051f3cf2bac317ae2

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