CVE-2026-43137: Linux kernel · ASoC: SOF: Intel: hda: Fix NULL pointer dereference
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in a1d4f3d3c0dc86527da6a19f6901a6a48375500d : update Linux kernel when convenient.
Data as of 6 Nov 2026, 16:04 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-11-06.
- Patch
- Available – fixed in a1d4f3d3c0dc86527da6a19f6901a6a48375500d, 42068f7dd42b559c4eeae645e1455ff36518866a, 10411f1f2c76be67103b1f95822ff629aa25e2aa +2
Exploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 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– |
AI-suggested
A fix is available and has been applied in the Linux kernel after version 5.16, as indicated by the fixed commit hashes. Users should update their Linux kernel to a version including these fixes to mitigate the vulnerability.
Description
A vulnerability in the Linux kernel's ASoC SOF Intel HDA driver could cause a NULL pointer dereference due to a mismatch between DAI links in the machine driver and the topology. This occurs when playback or capture widgets are not set, particularly in loopback capture scenarios using dummy DAI links. The issue has been fixed by returning an error when the widget is not set, preventing the NULL pointer dereference.
References
- git.kernel.org/stable/c/a1d4f3d3c0dc86527da6a19f6901a6a48375500d (opens in a new tab)
- git.kernel.org/stable/c/10411f1f2c76be67103b1f95822ff629aa25e2aa (opens in a new tab)
- git.kernel.org/stable/c/42068f7dd42b559c4eeae645e1455ff36518866a (opens in a new tab)
- git.kernel.org/stable/c/7750d78b4014902bc0ac03d4bb30faa076a913ab (opens in a new tab)
- git.kernel.org/stable/c/16c589567a956d46a7c1363af3f64de3d420af20 (opens in a new tab)