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.
References
| Link | Resource |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-SA-26:58.sound.asc | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
24 Sep 2026, 13:55
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://security.freebsd.org/advisories/FreeBSD-SA-26:58.sound.ascĀ - Vendor Advisory | |
| CPE | cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p8:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p12:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p11:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p7:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.1:p2:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:* |
|
| First Time |
Freebsd
Freebsd freebsd |
Information
Published : 2026-08-26 05:18
Updated : 2026-09-24 13:55
NVD link : CVE-2026-58091
Mitre link : CVE-2026-58091
CVE.ORG link : CVE-2026-58091
JSON object : View
Products Affected
freebsd
- freebsd
CWE
CWE-416
Use After Free
