CVEvulnerability

CVE-2026-58091

7.8 HIGH Published 2026-08-26 Modified 2026-09-24 Official page ↗
Status
Analyzed
Published
2026-08-26
Last modified
2026-09-24
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416

Description

The implementation of this ioctl attempts to acquire locks on all channels in a sync group. If locking a channel would block, it releases the sync group list lock and sleeps. Upon reawakening, it is possible that the sync group structure is freed, but the implementation did not handle this possibility. On a system with a multiple audio devices, an unprivileged local user can exploit this use-after-free to escalate privileges.

Affected configurations

• freebsd freebsd 14.4 • freebsd freebsd 15.0 • freebsd freebsd 15.1

Related

Weakness · CWE (1)

References