VulnerabilityPublished 23 Oct 2026

CVE-2026-99068: Linux kernel · ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f7dc71c1ce885f5d9f128037ebc75d9c0356e060 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:07 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f7dc71c1ce885f5d9f128037ebc75d9c0356e060, 0919d8dd19f92e12829055c75fced9a454d644bf, 593d46fc6af9a0178a46e77d6d24b20d2314165f

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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to f7dc71c1ce885f5d9f128037ebc75d9c0356e060, 0919d8dd19f92e12829055c75fced9a454d644bf or 593d46fc6af9a0178a46e77d6d24b20d2314165f.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ e576e7843c0d65b82d4092e5b386d9fbf5bc10c3, < f7dc71c1ce885f5d9f128037ebc75d9c0356e060	Fixed in f7dc71c1ce885f5d9f128037ebc75d9c0356e060
LinuxLinux	Affected ≥ e576e7843c0d65b82d4092e5b386d9fbf5bc10c3, < 0919d8dd19f92e12829055c75fced9a454d644bf	Fixed in 0919d8dd19f92e12829055c75fced9a454d644bf
LinuxLinux	Affected ≥ e576e7843c0d65b82d4092e5b386d9fbf5bc10c3, < 593d46fc6af9a0178a46e77d6d24b20d2314165f	Fixed in 593d46fc6af9a0178a46e77d6d24b20d2314165f
LinuxLinux	Affected =6.14	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers Commit e576e7843c0d ("ALSA: ctxfi: Simplify dao_clear_{left,right}_input() functions") centralized the DAO input mapper clearing logic in dao_clear_input(), but omitted the kfree() calls. It removes the mapper entries from the list and sets their pointers to NULL without freeing the allocated array. This leaks memory each time dao_clear_input() is called. Store the base pointer of the allocation before clearing the mapper entries and free the array after removing entries from the list.

References

Community reviews

Loading reviews…