CVE-2026-98308: Linux kernel · ALSA: hda: trace PCM open only after assigning a stream
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:27 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: trace PCM open only after assigning a stream Stream assignment can fail when hardware streams are exhausted. Move the tracepoint after the NULL check because its payload accesses the assigned stream tag. Detected by static analysis and reviewed with AI-assisted source auditing.
References
- ubuntu.com/security/CVE-2026-98308 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98308 (opens in a new tab)
- git.kernel.org/linus/c9e6e5f38bf75276605f1952b22285f5f3abcaff (opens in a new tab)
- git.kernel.org/stable/c/0a52ba6d3b268bb82f0ec4cb861bc68d252369c0 (opens in a new tab)
- git.kernel.org/stable/c/3c6ca6d9342f4a0be7c1413180e11023d13b5cde (opens in a new tab)
- git.kernel.org/stable/c/3db8afba2d210b7d80cd5cc6b76d7f46daa9b47a (opens in a new tab)
- git.kernel.org/stable/c/5a4c974dee03cc46eac43c82f33e34ec94f0b348 (opens in a new tab)
- git.kernel.org/stable/c/5c89e7965220e85d06ae4c58adb7d7bb6da2440c (opens in a new tab)
- git.kernel.org/stable/c/8477643cb91c9e09ac1b11890eef421ae63e53f7 (opens in a new tab)
- git.kernel.org/stable/c/c9e6e5f38bf75276605f1952b22285f5f3abcaff (opens in a new tab)
- git.kernel.org/stable/c/fba079ea22822248c82c3a999c88676d05b17bda (opens in a new tab)