In the Linux kernel, the following vulnerability has been resolved: ALSA: ymfpci: check snd_ctl_new1() return value snd_ctl_new1() can return NULL… (CVE-2026-64489)
A vulnerability in the Linux kernel ALSA ymfpci driver was resolved by adding checks for NULL return values from snd_ctl_new1(). The function snd_ctl_new1() can return NULL on memory allocation failure, but snd_ymfpci_create_spdif_controls() did not check this before dereferencing, leading to a potential NULL pointer dereference. The fix adds NULL checks and returns an error if allocation fails.
AI Analysis
Technical Summary
The Linux kernel ALSA ymfpci driver contained a vulnerability where snd_ctl_new1() could return NULL due to memory allocation failure. The function snd_ymfpci_create_spdif_controls() failed to verify this return value before dereferencing a pointer, resulting in a NULL pointer dereference vulnerability. The issue was resolved by adding NULL checks after snd_ctl_new1() calls and returning -ENOMEM if allocation fails.
Potential Impact
This vulnerability can cause a NULL pointer dereference in the ALSA ymfpci 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 by adding NULL checks after snd_ctl_new1() calls and returning an error if allocation fails. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; check the vendor advisory for current remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: ALSA: ymfpci: check snd_ctl_new1() return value snd_ctl_new1() can return NULL… (CVE-2026-64489)
Description
A vulnerability in the Linux kernel ALSA ymfpci driver was resolved by adding checks for NULL return values from snd_ctl_new1(). The function snd_ctl_new1() can return NULL on memory allocation failure, but snd_ymfpci_create_spdif_controls() did not check this before dereferencing, leading to a potential NULL pointer dereference. The fix adds NULL checks and returns an error if allocation fails.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel ALSA ymfpci driver contained a vulnerability where snd_ctl_new1() could return NULL due to memory allocation failure. The function snd_ymfpci_create_spdif_controls() failed to verify this return value before dereferencing a pointer, resulting in a NULL pointer dereference vulnerability. The issue was resolved by adding NULL checks after snd_ctl_new1() calls and returning -ENOMEM if allocation fails.
Potential Impact
This vulnerability can cause a NULL pointer dereference in the ALSA ymfpci 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 by adding NULL checks after snd_ctl_new1() calls and returning an error if allocation fails. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-6634-rq92-25wm
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64489"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a6542079c2644c7f80829c2
Added to database: 07/25/2026, 23:08:55 UTC
Last enriched: 07/25/2026, 23:18:21 UTC
Last updated: 07/26/2026, 04:52:03 UTC
Views: 5
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