CVE-2026-99068: Linux kernel · ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:42 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 23 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 26.10linuxpkg:deb/ubuntu/linux?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-oraclepkg:deb/ubuntu/linux-oracle?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix for this vulnerability is available and has been applied in the affected Linux kernel versions listed. Users should update to the fixed versions to remediate the memory leak. No additional mitigation steps are indicated.
Description
A memory leak vulnerability in the ALSA ctxfi component of the Linux kernel was fixed. The issue occurred because the function dao_clear_input() removed mapper entries without freeing the allocated memory, causing a leak each time it was called. The fix involves properly freeing the allocated array after clearing the entries.
References
- ubuntu.com/security/CVE-2026-99068 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-99068 (opens in a new tab)
- git.kernel.org/stable/c/0919d8dd19f92e12829055c75fced9a454d644bf (opens in a new tab)
- git.kernel.org/stable/c/593d46fc6af9a0178a46e77d6d24b20d2314165f (opens in a new tab)
- git.kernel.org/stable/c/f7dc71c1ce885f5d9f128037ebc75d9c0356e060 (opens in a new tab)