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

net: marvell: prestera: fix NULL dereference on devlink_alloc() failure

devlink_alloc() may return NULL on allocation failure, but
prestera_devlink_alloc() unconditionally calls devlink_priv() on
the returned pointer.

This leads to a NULL pointer dereference if devlink allocation fails.
Add a check for a NULL devlink pointer and return NULL early to avoid
the crash.

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 0.00035.

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
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 affected
< 8a4333b2818f0d853b43e139936c20659366e4a0
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 affected
< 325aea74be7e192b5c947c782da23b0d19a5fda2
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 affected
< 94e070cd50790317fba7787ae6006934b7edcb6f
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 affected
< 3950054c9512add0cc79ab7e72b6d2f9f675e25b
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 affected
< 326a4b7e61d01db3507f71c8bb5e85362f607064
34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 affected
< a428e0da1248c353557970848994f35fd3f005e2
Linux Linux affected
Version Status Constraints
5.10 affected
—
0 unaffected
< 5.10
5.15.198 unaffected
≤ 5.15.*
6.1.161 unaffected
≤ 6.1.*
6.6.121 unaffected
≤ 6.6.*
6.12.66 unaffected
≤ 6.12.*
6.18.6 unaffected
≤ 6.18.*
6.19 unaffected
≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*

No data.

No data.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4476-1 linux-6.1 security update
Debian DSA Debian DSA DSA-6126-1 linux security update
Debian DSA Debian DSA DSA-6127-1 linux security update
Ubuntu USN Ubuntu USN USN-8096-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8096-2 Linux kernel (FIPS) vulnerabilities
Ubuntu USN Ubuntu USN USN-8096-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8096-4 Linux kernel (Real-time) vulnerabilities
Ubuntu USN Ubuntu USN USN-8096-5 Linux kernel (NVIDIA Tegra IGX) vulnerabilities
Ubuntu USN Ubuntu USN USN-8116-1 Linux kernel (Intel IoTG Real-time) vulnerabilities
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2 cve-icon cve-icon
https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064 cve-icon cve-icon
https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b cve-icon cve-icon
https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0 cve-icon cve-icon
https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f cve-icon cve-icon
https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2026013135-CVE-2026-23019-dce2@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-23019 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-23019 cve-icon
History

Wed, 25 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476
CPEs cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*
Metrics 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'}

Mon, 02 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
References

Sat, 31 Jan 2026 11:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: fix NULL dereference on devlink_alloc() failure devlink_alloc() may return NULL on allocation failure, but prestera_devlink_alloc() unconditionally calls devlink_priv() on the returned pointer. This leads to a NULL pointer dereference if devlink allocation fails. Add a check for a NULL devlink pointer and return NULL early to avoid the crash.
Title net: marvell: prestera: fix NULL dereference on devlink_alloc() failure
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-02-09T08:37:12.887Z

Reserved: 2026-01-13T15:37:45.940Z

Link: CVE-2026-23019

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-01-31T12:16:05.207

Modified: 2026-03-25T15:55:44.020

Link: CVE-2026-23019

cve-icon Redhat

Severity :

Publid Date: 2026-01-31T00:00:00Z

Links: CVE-2026-23019 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses