CVE-2025-40030: pinctrl: check the return value of pinmux_ops::get_function_name()

Deferred
AliasesUBUNTU-CVE-2025-40030DEBIAN-CVE-2025-40030
Published 28-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-40030 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 13.2% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 52 · Related 47
DLA-4379-1DLA-4404-1DSA-6053-1MGASA-2025-0309MGASA-2025-0310OPENSUSE-SU-2025:15702-1

Timeline

  1. 28-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: check the return value of pinmux_ops::get_function_name() While the API contract in docs doesn't specify it explicitly, the generic implementation of the get_function_name() callback from struct pinmux_ops - pinmux_generic_get_function_name() - can fail and return NULL. This is already checked in pinmux_check_ops() so add a similar check in pinmux_func_name_to_selector() instead of passing the returned pointer right down to strcmp() where the NULL can get dereferenced. This is normal operation when adding new pinfunctions.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu154 products
  • linuxAll versions (No fix recorded) | < 5.15.0-170.180 | < 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1100.107 | < 6.8.0-1050.53 | < 6.17.0-1007.7
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.158-1 | < 6.12.57-1 | < 6.17.6-1
Linux1 product
  • linux≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < 1a7fc8fed2bb2e113604fde7a45432ace2056b97 | ≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < e7265dc4c670b89611bcf5fe33acf99bc0aa294f | ≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < d77ef2f621cd1d605372c4c6ce667c496f6990c3 | ≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < ba7f7c2b2b3261e7def67018c38c69b626e0e66e | ≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < 1a2ea887a5cd7d47bab599f733d89444df018b1a | ≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < 688c688e0bf55824f4a38f8c2180046f089a3e3b | ≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < b7e0535060a60cc99eafc19cc665d979714cd73a | ≥ f913cfce4ee49a3382a9ff95696f49a46e56e974, < 4002ee98c022d671ecc1e4a84029e9ae7d8a5603 | 4.19

3 vendors · 156 products

References

42 links
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