VulnerabilityPublished 4 Sep 2025Updated 5 Nov 2026

CVE-2025-38706: Linux kernel · ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime()

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in cecc65827ef3df9754e097582d89569139e6cd1e : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

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, 2026-11-05.

Patch

Available – fixed in cecc65827ef3df9754e097582d89569139e6cd1e, 82ba7b8cf9f6e3bf392a9f08ba3d1c0b200ccb94, 41f53afe53a57a7c50323f99424b598190acf192 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Sep 2025
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 5 Nov 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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 to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 50cd9b5317d5593d0a33f4227f56ddcc1bf66604, < cecc65827ef3df9754e097582d89569139e6cd1e	Fixed in cecc65827ef3df9754e097582d89569139e6cd1e
LinuxLinux	Affected ≥ 50cd9b5317d5593d0a33f4227f56ddcc1bf66604, < 82ba7b8cf9f6e3bf392a9f08ba3d1c0b200ccb94	Fixed in 82ba7b8cf9f6e3bf392a9f08ba3d1c0b200ccb94
LinuxLinux	Affected ≥ 50cd9b5317d5593d0a33f4227f56ddcc1bf66604, < 41f53afe53a57a7c50323f99424b598190acf192	Fixed in 41f53afe53a57a7c50323f99424b598190acf192
LinuxLinux	Affected ≥ 50cd9b5317d5593d0a33f4227f56ddcc1bf66604, < 8b465bedc2b417fd27c1d1ab7122882b4b60b1a0	Fixed in 8b465bedc2b417fd27c1d1ab7122882b4b60b1a0
LinuxLinux	Affected ≥ 50cd9b5317d5593d0a33f4227f56ddcc1bf66604, < 7f8fc03712194fd4e2df28af7f7f7a38205934ef	Fixed in 7f8fc03712194fd4e2df28af7f7f7a38205934ef
LinuxLinux	Affected ≥ 50cd9b5317d5593d0a33f4227f56ddcc1bf66604, < 7ce0a7255ce97ed7c54afae83fdbce712a1f0c9e	Fixed in 7ce0a7255ce97ed7c54afae83fdbce712a1f0c9e

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime() snd_soc_remove_pcm_runtime() might be called with rtd == NULL which will leads to null pointer dereference. This was reproduced with topology loading and marking a link as ignore due to missing hardware component on the system. On module removal the soc_tplg_remove_link() would call snd_soc_remove_pcm_runtime() with rtd == NULL since the link was ignored, no runtime was created.

References

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