CVE-2026-98006: Linux kernel · ALSA: caiaq: Decoupling ep1_in_urb in caiaq dev
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in fbfbad728da2e95d6560e43266895de5c8e844b3 : patch Linux kernel soon.
Data as of 26 Oct 2026, 14:05 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in fbfbad728da2e95d6560e43266895de5c8e844b3, dbd3effcbdb85394d3c4bd5ee9df785a44303333, d41e6c1533f09b27fc562260d41417490d2b6084 +5
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 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
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available in the Linux kernel source, as indicated by the listed fixed commit versions. Users and administrators should update their Linux kernel to a version that includes these fixes to mitigate this vulnerability.
Description
A use-after-free vulnerability in the ALSA caiaq USB audio driver in the Linux kernel was addressed by decoupling the ep1_in_urb and midi_out_urb objects from the main device structure and managing their memory separately. This prevents the premature freeing of these URB objects when the sound card is released after a command timeout, which previously led to kernel memory corruption detected by KASAN.
References
- git.kernel.org/stable/c/a3bbd2845bc7188ae18548a591da1067af997e80 (opens in a new tab)
- git.kernel.org/stable/c/fbfbad728da2e95d6560e43266895de5c8e844b3 (opens in a new tab)
- git.kernel.org/stable/c/dbd3effcbdb85394d3c4bd5ee9df785a44303333 (opens in a new tab)
- git.kernel.org/stable/c/671037b282eb7fe477136bd0130ffd9029eb8668 (opens in a new tab)
- git.kernel.org/stable/c/d6dd3c915b0d02457711d8fbaa60efc52144557f (opens in a new tab)
- git.kernel.org/stable/c/0c1b907d5db2f3508375776e5b78d69591aa5626 (opens in a new tab)
- git.kernel.org/stable/c/d41e6c1533f09b27fc562260d41417490d2b6084 (opens in a new tab)
- git.kernel.org/stable/c/402a9d6aab7ac787ab075adeb562c3db8b8f564b (opens in a new tab)