CVE-2025-38027

HIGH EPSS 5.9%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
High
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: regulator: max20086: fix invalid memory access max20086_parse_regulators_dt() calls of_regulator_match() using an array of struct of_regulator_match allocated on the stack for the matches argument. of_regulator_match() calls devm_of_regulator_put_matches(), which calls devres_alloc() to allocate a struct devm_of_regulator_matches which will be de-allocated using devm_of_regulator_put_matches(). struct devm_of_regulator_matches is populated with the stack allocated matches array. If the device fails to probe, devm_of_regulator_put_matches() will be called and will try to call of_node_put() on that stack pointer, generating the following dmesg entries: max20086 6-0028: Failed to read DEVICE_ID reg: -121 kobject: '\xc0$\xa5\x03' (000000002cebcb7a): is not initialized, yet kobject_put() is being called. Followed by a stack trace matching the call flow described above. Switch to allocating the matches array using devm_kcalloc() to avoid accessing the stack pointer long after it's out of scope. This also has the advantage of allowing multiple max20086 to probe without overriding the data stored inside the global of_regulator_match.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 11

VendorProductVersionRange
linuxlinux_kernel*≥5.17  –  <6.1.140
linuxlinux_kernel*≥6.2  –  <6.6.92
linuxlinux_kernel*≥6.7  –  <6.12.30
linuxlinux_kernel*≥6.13  –  <6.14.8
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
linuxlinux_kernel6.15any
debiandebian_linux11.0any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/5578ab04bd7732f470fc614bbc0a924900399fb8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6b0cd72757c69bc2d45da42b41023e288d02e772
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ba30f7aa2c550b2ac04f16b81a19a8c045b8660
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7bddac8603d4e396872c2fbf4403ec08e7b1d7c8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2a9a92bb4cc7568cff68241b0051dc7268bdc68
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5578ab04bd7732f470fc614bbc0a924900399fb8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6b0cd72757c69bc2d45da42b41023e288d02e772
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ba30f7aa2c550b2ac04f16b81a19a8c045b8660
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7bddac8603d4e396872c2fbf4403ec08e7b1d7c8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d2a9a92bb4cc7568cff68241b0051dc7268bdc68
    Patch