CVE-2026-98093: Linux kernel · ASoC: fsl_micfil: balance mclk enable/disable
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in fa1bbe3534499dd89d3b0b941d6dd4ddb70c31b5 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in fa1bbe3534499dd89d3b0b941d6dd4ddb70c31b5, d3dbccfe6afa7b9a6a7ed65cfaa76a47fa050a56, 470db2026a435b79f7ecb4d65523ea16a99d55d8
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 Linux kernel to fa1bbe3534499dd89d3b0b941d6dd4ddb70c31b5, d3dbccfe6afa7b9a6a7ed65cfaa76a47fa050a56 or 470db2026a435b79f7ecb4d65523ea16a99d55d8.
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– |
AI-suggested
A fix is available and has been applied in specific Linux kernel commits (fa1bbe3534499dd89d3b0b941d6dd4ddb70c31b5, d3dbccfe6afa7b9a6a7ed65cfaa76a47fa050a56, 470db2026a435b79f7ecb4d65523ea16a99d55d8). Users should update to a patched kernel version that includes these commits to resolve the issue.
Description
A vulnerability in the Linux kernel's ASoC fsl_micfil driver involves improper handling of the master clock (mclk) enable and disable calls. The hw_params() function enables the mclk unconditionally, and hw_free() disables it unconditionally, but the PCM core does not guarantee these calls are paired 1:1. This can cause warnings or leave the clock enabled unintentionally, potentially leading to resource leaks.