7.8

CVE-2025-38003: can: bcm: add missing rcu read protection for procfs content

Modified
AliasesUBUNTU-CVE-2025-38003DEBIAN-CVE-2025-38003
Published 08-06-2025Last modified 05-08-2026

Vulnerability summary

CVE-2025-38003 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 21.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.04 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 45 · Related 42
DLA-4327-1DLA-4328-1DSA-5973-1SUSE-SU-2025:02249-1SUSE-SU-2025:02254-1SUSE-SU-2025:02307-1

Timeline

  1. 08-06-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing rcu read protection for procfs content When the procfs content is generated for a bcm_op which is in the process to be removed the procfs output might show unreliable data (UAF). As the removal of bcm_op's is already implemented with rcu handling this patch adds the missing rcu_read_lock() and makes sure the list entries are properly removed under rcu protection.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

Increase +0.04 pp

From 0.25% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu141 products
  • linuxAll versions (No fix recorded) | < 5.15.0-152.162 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1090.97 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 5b48f5711f1c630841ab78dcc061de902f0e37bf, < 19f553a1ddf260da6570ed8f8d91a8c87f49b63a | ≥ 85cd41070df992d3c0dfd828866fdd243d3b774a, < 659701c0b954ccdb4a916a4ad59bbc16e726d42c | ≥ f34f2a18e47b73e48f90a757e1f4aaa8c7d665a1, < 0622846db728a5332b917c797c733e202c4620ae | ≥ f1b4e32aca0811aa011c76e5d6cf2fa19224b386, < 6d7d458c41b98a5c1670cbd36f2923c37de51cf5 | ≥ f1b4e32aca0811aa011c76e5d6cf2fa19224b386, < 1f912f8484e9c4396378c39460bbea0af681f319 | ≥ f1b4e32aca0811aa011c76e5d6cf2fa19224b386, < 63567ecd99a24495208dc860d50fb17440043006 | ≥ f1b4e32aca0811aa011c76e5d6cf2fa19224b386, < 7c9db92d5f0eadca30884af75c53d601edc512ee | ≥ f1b4e32aca0811aa011c76e5d6cf2fa19224b386, < dac5e6249159ac255dad9781793dbe5908ac9ddb | fbac09a3b8890003c0c55294c00709f3ae5501bb | edb4baffb9483141a50fb7f7146cfe4a4c0c2db8 | ≥ 5.4.205, < 5.4.294 | ≥ 5.10.130, < 5.10.238 | ≥ 5.15.54, < 5.15.185 | ≥ 4.19.252, < 4.20 | ≥ 5.18.11, < 5.19 | 5.19
  • linux_kernelEOL≥ 4.19.252, < 4.20 | ≥ 5.4.205, < 5.4.294 | ≥ 5.10.130, < 5.10.238 | ≥ 5.15.54, < 5.15.185 | ≥ 5.18.11, < 5.19 | ≥ 5.19.1, < 6.1.141 | ≥ 6.2, < 6.6.93 | ≥ 6.7, < 6.12.31 | ≥ 6.13, < 6.14.9 | 5.19 | 5.19:rc6 | 5.19:rc7 | 5.19:rc8 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5 | 6.15:rc6 | 6.15:rc7

3 vendors · 145 products

References

46 links
Show all 46 references