In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: qcom: clear opened when stream enable fails On enable,… (CVE-2026-72445)
A vulnerability in the Linux kernel ALSA usb-audio driver for Qualcomm devices was resolved. The issue occurs when enabling a stream sets a flag before validating the service interval, leading to a substream being stuck in a busy state (-EBUSY) if the interval is invalid. This causes the audio substream to become wedged until a disable or disconnect occurs. The fix clears the opened flag on the error path to prevent this condition.
AI Analysis
Technical Summary
The vulnerability in the Linux kernel ALSA usb-audio qcom driver involves improper handling of the subs->opened flag during stream enablement. Specifically, subs->opened is set before the service_interval is validated. If the interval is invalid, the code jumps to a response label without clearing subs->opened, causing the substream to remain in a busy state (-EBUSY) indefinitely until a disable or disconnect event. The patch clears subs->opened on the enable error path to resolve this issue.
Potential Impact
Affected systems may experience a wedged audio substream that remains busy and unresponsive until manually disabled or disconnected. This could result in audio functionality disruption for affected USB audio devices using the Qualcomm driver in ALSA. There is no indication of privilege escalation or code execution impact.
Mitigation Recommendations
A fix has been applied in the Linux kernel to clear the subs->opened flag on the enable error path. Users should update to the latest kernel version containing this patch. No additional mitigation is indicated.
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: qcom: clear opened when stream enable fails On enable,… (CVE-2026-72445)
Description
A vulnerability in the Linux kernel ALSA usb-audio driver for Qualcomm devices was resolved. The issue occurs when enabling a stream sets a flag before validating the service interval, leading to a substream being stuck in a busy state (-EBUSY) if the interval is invalid. This causes the audio substream to become wedged until a disable or disconnect occurs. The fix clears the opened flag on the error path to prevent this condition.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in the Linux kernel ALSA usb-audio qcom driver involves improper handling of the subs->opened flag during stream enablement. Specifically, subs->opened is set before the service_interval is validated. If the interval is invalid, the code jumps to a response label without clearing subs->opened, causing the substream to remain in a busy state (-EBUSY) indefinitely until a disable or disconnect event. The patch clears subs->opened on the enable error path to resolve this issue.
Potential Impact
Affected systems may experience a wedged audio substream that remains busy and unresponsive until manually disabled or disconnected. This could result in audio functionality disruption for affected USB audio devices using the Qualcomm driver in ALSA. There is no indication of privilege escalation or code execution impact.
Mitigation Recommendations
A fix has been applied in the Linux kernel to clear the subs->opened flag on the enable error path. Users should update to the latest kernel version containing this patch. No additional mitigation is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-xhxj-2g9f-jjcr
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-72445"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a808b6ebf8831d5394f9859
Added to database: 08/15/2026, 15:53:18 UTC
Last enriched: 08/15/2026, 16:24:05 UTC
Last updated: 08/16/2026, 00:41:15 UTC
Views: 2
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