CVE-2022-23090: AIO credential reference count leak

Severity: high (CVSS 7.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-15 · updated 2026-06-17
Weakness: CWE-416

Description

The aio_aqueue function, used by the lio_listio system call, fails to release a reference to a credential in an error case. An attacker may cause the reference count to overflow, leading to a use after free (UAF).

Affected products

FreeBSD: 12.3-beta1, 12.3-p1, 12.3-p2, 12.3-p3, 12.3-p4, 12.3-p5 (+22)

References

https://security.freebsd.org/advisories/FreeBSD-SA-22:10.aio.asc
https://security.netapp.com/advisory/ntap-20240415-0007/
https://security.freebsd.org/advisories/FreeBSD-SA-22:10.aio.asc
https://security.netapp.com/advisory/ntap-20240415-0007/

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