On a system with a multiple audio devices, an unprivileged local user can exploit this use-after-free to escalate privileges.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Wed, 26 Aug 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 26 Aug 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Wed, 26 Aug 2026 08:15:00 +0000
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| First Time appeared |
Freebsd
Freebsd freebsd |
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| Vendors & Products |
Freebsd
Freebsd freebsd |
Wed, 26 Aug 2026 05:00:00 +0000
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|---|---|---|
| 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. | |
| Title | Kernel use-after-free via the SNDCTL_DSP_SYNCSTART ioctl | |
| Weaknesses | CWE-416 | |
| References |
|
Projects
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Status: PUBLISHED
Assigner: freebsd
Published:
Updated: 2026-08-26T15:26:08.648Z
Reserved: 2026-06-29T01:40:17.498Z
Link: CVE-2026-58091
Updated: 2026-08-26T15:26:03.892Z
Status : Awaiting Analysis
Published: 2026-08-26T05:18:12.337
Modified: 2026-08-26T16:54:50.030
Link: CVE-2026-58091
No data.
OpenCVE Enrichment
Updated: 2026-08-26T08:00:02Z