In the Linux kernel, the following vulnerability has been resolved:

media: stm32-csi: Fix dereference before NULL check

In 'stm32_csi_start', 'csidev->s_subdev' is dereferenced directly while
assigning a value to the 'src_pad'. However the same value is being
checked against NULL at a later point of time indicating that there
are chances that the value can be NULL.

Move the dereference after the NULL check.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00032.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
e7bad98c205d17c745de9d83ebf73e53cbf99d48 affected < 1f053d82e59c785b2b939cbed12f13657f84b296
e7bad98c205d17c745de9d83ebf73e53cbf99d48 affected < 4eeafff163e80d576c5efc1360ae310c0ceedd02
e7bad98c205d17c745de9d83ebf73e53cbf99d48 affected < 80eaf32672871bd2623ce6ba13ffc1f018756580
Linux Linux affected
Version Status Constraints
6.15 affected —
0 unaffected < 6.15
6.16.11 unaffected ≤ 6.16.*
6.17.1 unaffected ≤ 6.17.*
6.18 unaffected ≤ *

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1f053d82e59c785b2b939cbed12f13657f84b296 cve-icon cve-icon
https://git.kernel.org/stable/c/4eeafff163e80d576c5efc1360ae310c0ceedd02 cve-icon cve-icon
https://git.kernel.org/stable/c/80eaf32672871bd2623ce6ba13ffc1f018756580 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102004-CVE-2025-40015-2fe0@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40015 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40015 cve-icon
History

Mon, 01 Dec 2025 06:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tue, 21 Oct 2025 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Tue, 21 Oct 2025 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Mon, 20 Oct 2025 15:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: media: stm32-csi: Fix dereference before NULL check In 'stm32_csi_start', 'csidev->s_subdev' is dereferenced directly while assigning a value to the 'src_pad'. However the same value is being checked against NULL at a later point of time indicating that there are chances that the value can be NULL. Move the dereference after the NULL check.
Title media: stm32-csi: Fix dereference before NULL check
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-01T06:16:20.198Z

Reserved: 2025-04-16T07:20:57.151Z

Link: CVE-2025-40015

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-20T16:15:38.250

Modified: 2025-10-21T19:31:25.450

Link: CVE-2025-40015

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-20T00:00:00Z

Links: CVE-2025-40015 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-21T09:39:53Z

Weaknesses

No weakness.