5.5

CVE-2025-37910: ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations

Analyzed
AliasesUBUNTU-CVE-2025-37910DEBIAN-CVE-2025-37910
Published 20-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-37910 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 10% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.20%
0%100%
Low · +0.01 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 6 · Related 6
USN-7649-1USN-7649-2USN-7650-1USN-7665-1USN-7665-2USN-7721-1

Timeline

  1. 20-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations On Adva boards, SMA sysfs store/get operations can call __handle_signal_outputs() or __handle_signal_inputs() while the `irig` and `dcf` pointers are uninitialized, leading to a NULL pointer dereference in __handle_signal() and causing a kernel crash. Adva boards don't use `irig` or `dcf` functionality, so add Adva-specific callbacks `ptp_ocp_sma_adva_set_outputs()` and `ptp_ocp_sma_adva_set_inputs()` that avoid invoking `irig` or `dcf` input/output routines.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.19% 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

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu89 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9, < 8a543d825e78b8d680d8f891381b83fbffdb0bb6 | ≥ ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9, < 5b349f9cdb4a9daa133bea267dfc0c383628387a | ≥ ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9, < e98386d79a23c57cf179fe4138322e277aa3aa74 | 6.9
  • linux_kernel≥ 6.9, < 6.12.28 | ≥ 6.13, < 6.14.6 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4
Debian1 product
  • linux< 6.12.29-1

3 vendors · 92 products

References

13 links
Show all 13 references