In the Linux kernel, the following vulnerability has been resolved: ALSA: aoa: check snd_ctl_new1() return value snd_ctl_new1() can return NULL when… (CVE-2026-64488)
A vulnerability in the Linux kernel ALSA aoa component was resolved that involved a missing NULL check after the snd_ctl_new1() function call. snd_ctl_new1() can return NULL on memory allocation failure, and the lack of checking this return value before dereferencing it could lead to a NULL pointer dereference. The fix adds NULL checks after snd_ctl_new1() calls and returns early if any fail.
AI Analysis
Technical Summary
The Linux kernel ALSA aoa driver did not properly check the return value of snd_ctl_new1(), which can return NULL if memory allocation fails. In layout.c, this missing check led to dereferencing a NULL pointer via ctl->id.name or passing a NULL pointer to aoa_snd_ctl_add(), causing a NULL pointer dereference vulnerability. The issue was resolved by adding NULL checks after snd_ctl_new1() calls and returning early if the call fails.
Potential Impact
This vulnerability can cause a NULL pointer dereference in the ALSA aoa driver, potentially leading to a kernel crash or denial of service. There is no indication of privilege escalation or code execution impact. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add NULL checks after snd_ctl_new1() calls. Users should update to a kernel version that includes this patch once available. Patch status is not yet confirmed in this data; check the official Linux kernel advisories or vendor updates for the exact fixed versions and remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: ALSA: aoa: check snd_ctl_new1() return value snd_ctl_new1() can return NULL when… (CVE-2026-64488)
Description
A vulnerability in the Linux kernel ALSA aoa component was resolved that involved a missing NULL check after the snd_ctl_new1() function call. snd_ctl_new1() can return NULL on memory allocation failure, and the lack of checking this return value before dereferencing it could lead to a NULL pointer dereference. The fix adds NULL checks after snd_ctl_new1() calls and returns early if any fail.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel ALSA aoa driver did not properly check the return value of snd_ctl_new1(), which can return NULL if memory allocation fails. In layout.c, this missing check led to dereferencing a NULL pointer via ctl->id.name or passing a NULL pointer to aoa_snd_ctl_add(), causing a NULL pointer dereference vulnerability. The issue was resolved by adding NULL checks after snd_ctl_new1() calls and returning early if the call fails.
Potential Impact
This vulnerability can cause a NULL pointer dereference in the ALSA aoa driver, potentially leading to a kernel crash or denial of service. There is no indication of privilege escalation or code execution impact. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add NULL checks after snd_ctl_new1() calls. Users should update to a kernel version that includes this patch once available. Patch status is not yet confirmed in this data; check the official Linux kernel advisories or vendor updates for the exact fixed versions and remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-f8vw-v29r-vg8c
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64488"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a6542079c2644c7f808267c
Added to database: 07/25/2026, 23:08:55 UTC
Last enriched: 07/25/2026, 23:17:18 UTC
Last updated: 07/26/2026, 05:11:56 UTC
Views: 4
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