VulnerabilityPublished 9 Oct 2025Updated 5 Nov 2026

CVE-2025-39959: Linux kernel · ASoC: amd: acp: Fix incorrect retrival of acp_chip_info

Affects Linux kernelSource CVE Database V5

Not known to be exploited : upgrade to d7871f400cad1da376f1d7724209a1c49226c456 or 65c5cfbd6d938f77a0df3c34855a4f7d8a61fd10 when convenient.

Data as of 5 Nov 2026, 23:24 UTC

Severity

Unrated

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

Thin evidence

One scorer or none

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.

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 d7871f400cad1da376f1d7724209a1c49226c456, 65c5cfbd6d938f77a0df3c34855a4f7d8a61fd10

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Oct 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 Linux kernel to d7871f400cad1da376f1d7724209a1c49226c456 or 65c5cfbd6d938f77a0df3c34855a4f7d8a61fd10.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ e3933683b25e2cc94485da4909e3338e1a177b39, < d7871f400cad1da376f1d7724209a1c49226c456	Fixed in d7871f400cad1da376f1d7724209a1c49226c456
LinuxLinux	Affected ≥ e3933683b25e2cc94485da4909e3338e1a177b39, < 65c5cfbd6d938f77a0df3c34855a4f7d8a61fd10	Fixed in 65c5cfbd6d938f77a0df3c34855a4f7d8a61fd10
LinuxLinux	Affected =6.15	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp: Fix incorrect retrival of acp_chip_info Use dev_get_drvdata(dev->parent) instead of dev_get_platdata(dev) to correctly obtain acp_chip_info members in the acp I2S driver. Previously, some members were not updated properly due to incorrect data access, which could potentially lead to null pointer dereferences. This issue was missed in the earlier commit ("ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot"), which only addressed set_tdm_slot(). This change ensures that all relevant functions correctly retrieve acp_chip_info, preventing further null pointer dereference issues.

References

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