Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.10.1, < 5.15.198 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2Patch
- https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064Patch
- https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25bPatch
- https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0Patch
- https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6fPatch
- https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2Patch
FAQ
What is CVE-2026-23019?
CVE-2026-23019 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2026-23019?
CVE-2026-23019 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23019?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.