CVE-2025-38003Time-of-check Time-of-use (TOCTOU) Race Condition in Linux

Severity
5.5MEDIUMNVD
OSV3.2
EPSS
0.1%
top 67.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedJun 8
Latest updateMar 25

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 vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

NVDlinux/linux_kernel4.19.2524.20+10
Debianlinux/linux_kernel< 5.10.244-1+3
Ubuntulinux/linux_kernel< 5.15.0-152.162+1
CVEListV5linux/linux5b48f5711f1c630841ab78dcc061de902f0e37bf19f553a1ddf260da6570ed8f8d91a8c87f49b63a+10

Also affects: Debian Linux 11.0

Patches

🔴Vulnerability Details

34
OSV
linux-azure-6.8 vulnerabilities2026-03-25
OSV
linux-azure-fips vulnerabilities2026-03-04
OSV
linux-azure vulnerabilities2026-03-04
OSV
linux-ibm, linux-ibm-6.8 vulnerabilities2026-02-24
OSV
linux-xilinx vulnerabilities2026-02-24

📋Vendor Advisories

32
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-25
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Xilinx) vulnerabilities2026-02-24
Ubuntu
Linux kernel (IBM) vulnerabilities2026-02-24
CVE-2025-38003 — Linux vulnerability | cvebase