CVE-2025-22095

PCI: brcmstb: Fix error path after a call to regulator_bulk_get()

MEDIUM
5.5
CVSS Score
Published: April 16, 2025 at 02:12 PM UTC
Updated: October 15, 2026 at 02:17 AM UTC
4 products affected across 2 vendorsLinux KernelSIMATIC S7-1500 CPU 1518-4 Pn /dp MFP FirmwareSiplus S7-1500 CPU 1518-4 Pn /dp MFP Firmware

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: brcmstb: Fix error path after a call to regulator_bulk_get() If the regulator_bulk_get() returns an error and no regulators are created, we need to set their number to zero. If we don't do this and the PCIe link up fails, a call to the regulator_bulk_free() will result in a kernel panic. While at it, print the error value, as we cannot return an error upwards as the kernel will WARN() on an error from add_bus(). [kwilczynski: commit log, use comma in the message to match style with other similar messages]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.0 ≤ v < 6.1.1346.13 ≤ v < 6.13.116.14 ≤ v < 6.14.26.2 ≤ v < 6.6.876.7 ≤ v < 6.12.236.09e6be018b26347c26a93e63fb50a37ee2c9311de
Vendor states this is fixed in 3651ad5249c51cf7eee078e12612557040a6bdb4 (fixed)
Vendor states this is fixed in 6f44e1fdb006db61394aa4d4c25728ada00842e7 (fixed)
Vendor states this is fixed in 7842e842a9bf6bd5866c84f588353711d131ab1a (fixed)
Vendor states this is fixed in 99a0efba9f903acbdece548862b6b4cbe7d999e1 (fixed)
Vendor states this is fixed in df63321a40cc98e52313cffbff376b8ae9ceffa7 (fixed)
Vendor states this is fixed in eedd054834930b8d678f0776cd4b091b8fffbb4a (fixed)
Vendor states this is fixed in 6.0 (unaffected)
Vendor states this is fixed in 6.1.134 (unaffected)
Vendor states this is fixed in 6.12.23 (unaffected)
Vendor states this is fixed in 6.13.11 (unaffected)
Vendor states this is fixed in 6.14.2 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.6.87 (unaffected)

References (9)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3651ad5249c51cf7eee078e12612557040a6bdb4
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6f44e1fdb006db61394aa4d4c25728ada00842e7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7842e842a9bf6bd5866c84f588353711d131ab1a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/99a0efba9f903acbdece548862b6b4cbe7d999e1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/df63321a40cc98e52313cffbff376b8ae9ceffa7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/eedd054834930b8d678f0776cd4b091b8fffbb4a
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-019113.html

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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