CVE-2026-64486
In the Linux kernel, the following vulnerability has been resolved:
ALSA: cmipci: check snd_ctl_new1() return value
snd_ctl_new1() can return NULL when memory allocation fails.
snd_cmipci_spdif_controls() does not check the return value before
dereferencing kctl->id.device, which can lead to a NULL pointer
dereference.
Add NULL checks after snd_ctl_new1() calls and return -ENOMEM if any
fails.
CSIRTS triage
- What
- The snd_ctl_new1() return value is not properly checked, which may lead to issues.
- Who is affected
- Deployments of the Linux kernel with ALSA support.
- Urgency
- Remediation is advisable to prevent potential instability, with no known exploits currently.
- Action
- Update to the latest kernel version that includes the fix.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
Advisory coverage (2)
- unknownCVE-2026-64486: In the Linux kernel, the following vulnerability has been resolved: ALSA: cmipci: check snd_ct…nvd · 2026-07-25
- mediumCVE-2026-64486: ALSA: cmipci: check snd_ctl_new1() return valuemsrc · 2026-07-14
External references
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