CVE-2026-64489: Linux kernel · ALSA: ymfpci: check snd_ctl_new1() return value
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 6.1.34 : update Linux kernel when convenient.
Data as of 3 Nov 2026, 19:28 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- Patch
- Available – fixed in 6.1.34
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Linux Linux | Affected
| Fixed in– |
AI-suggested
The vulnerability has been fixed in Linux kernel versions 6.1.34 and 6.3.8 by adding proper NULL checks and returning error codes on allocation failure. Users should update to these or later versions to remediate the issue.
Description
A vulnerability in the Linux kernel ALSA ymfpci driver involves a missing NULL check after the snd_ctl_new1() function call, which can return NULL on memory allocation failure. This can lead to a NULL pointer dereference in snd_ymfpci_create_spdif_controls(). The issue has been resolved by adding NULL checks and returning an error code if allocation fails.
References
- git.kernel.org/stable/c/d7c71dfd4b80f0eacac2c157a8a3a4c6e8b2e0d1 (opens in a new tab)
- git.kernel.org/stable/c/91095474eea29b95c9a8bceb9b501a2702b6c55f (opens in a new tab)
- git.kernel.org/stable/c/02f33c2062c75e28abc7ad58ce86451cf3140455 (opens in a new tab)
- git.kernel.org/stable/c/f6538a318947b627710b08a268bc80a48c23bde7 (opens in a new tab)
- git.kernel.org/stable/c/18ec7d7785be7a4ee8ea11e355122282caad4267 (opens in a new tab)
- git.kernel.org/stable/c/e64d170346d00b580c0043de3e5ccb3e331c47d4 (opens in a new tab)