In the Linux kernel, the following vulnerability has been resolved: ALSA: gus: check snd_ctl_new1() return value snd_ctl_new1() can return NULL when… (CVE-2026-64482)
A vulnerability in the Linux kernel ALSA gus driver was resolved where snd_ctl_new1() could return NULL on memory allocation failure. The function snd_gf1_pcm_volume_control() did not check this return value before dereferencing, leading to a potential NULL pointer dereference. The fix added a NULL check and returns -ENOMEM if snd_ctl_new1() fails.
AI Analysis
Technical Summary
The Linux kernel ALSA gus driver contained a vulnerability (CVE-2026-64482) due to lack of validation of the return value from snd_ctl_new1(), which can return NULL when memory allocation fails. The vulnerable code dereferenced kctl->id.index without checking for NULL, causing a NULL pointer dereference. The issue was resolved by adding a NULL check after snd_ctl_new1() and returning an error code (-ENOMEM) if the allocation failed.
Potential Impact
This vulnerability can cause a NULL pointer dereference in the ALSA gus driver, potentially leading to a kernel crash or denial of service. There is no indication of code execution or privilege escalation from the provided data.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add a NULL check after snd_ctl_new1() and return -ENOMEM if it fails. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed; check the vendor advisory for current remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: ALSA: gus: check snd_ctl_new1() return value snd_ctl_new1() can return NULL when… (CVE-2026-64482)
Description
A vulnerability in the Linux kernel ALSA gus driver was resolved where snd_ctl_new1() could return NULL on memory allocation failure. The function snd_gf1_pcm_volume_control() did not check this return value before dereferencing, leading to a potential NULL pointer dereference. The fix added a NULL check and returns -ENOMEM if snd_ctl_new1() fails.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel ALSA gus driver contained a vulnerability (CVE-2026-64482) due to lack of validation of the return value from snd_ctl_new1(), which can return NULL when memory allocation fails. The vulnerable code dereferenced kctl->id.index without checking for NULL, causing a NULL pointer dereference. The issue was resolved by adding a NULL check after snd_ctl_new1() and returning an error code (-ENOMEM) if the allocation failed.
Potential Impact
This vulnerability can cause a NULL pointer dereference in the ALSA gus driver, potentially leading to a kernel crash or denial of service. There is no indication of code execution or privilege escalation from the provided data.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add a NULL check after snd_ctl_new1() and return -ENOMEM if it fails. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed; check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-6ch7-9774-5q3m
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64482"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a6542079c2644c7f8082709
Added to database: 07/25/2026, 23:08:55 UTC
Last enriched: 07/25/2026, 23:18:05 UTC
Last updated: 07/26/2026, 04:44:38 UTC
Views: 5
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