CVE-2026-23019

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2	Patch
https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064	Patch
https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b	Patch
https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0	Patch
https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6f	Patch
https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2	Patch

Configurations

Configuration 1 (hide)

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::::::

History

No history.

Information

Published : 2026-01-31 12:16

Updated : 2026-03-25 15:55

NVD link : CVE-2026-23019

Mitre link : CVE-2026-23019

CVE.ORG link : CVE-2026-23019

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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