Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: pfcp: allocate per-cpu tstats for PFCP netdevs PFCP uses dev_get_tstats64() as its ndo_get_stats64 callback, but pfcp_link_setup() does not request NETDEV_PCPU_STAT_TSTATS. The net core therefore leaves dev->tstats NULL for PFCP devices. Creating a PFCP rtnetlink device can immediately ask the new netdev for stats while building the RTM_NEWLINK notification. That reaches dev_get_tstats64() and dereferences the NULL dev->tstats pointer. Set pcpu_stat_type to NETDEV_PCPU_STAT_TSTATS during PFCP link setup so the net core allocates the storage expected by dev_get_tstats64().
References
- https://git.kernel.org/stable/c/24041543da8cd84eb5d8ae738c534372fff54820
- https://git.kernel.org/stable/c/51a1d9836acc76a1bd16170b2f4b35f11036593f
- https://git.kernel.org/stable/c/56b4ad500fd1282ef04db3c4beae5b54ab093a53
- https://git.kernel.org/stable/c/67e4b283de36d9eebf95acdea5d6674b6ef4b2f4
FAQ
What is CVE-2026-74286?
CVE-2026-74286 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: net: pfcp: allocate per-cpu tstats for PFCP netdevs PFCP uses dev_get_tstats64() as its ndo_get_stats64 callback, but pfcp_link_se...
How severe is CVE-2026-74286?
CVSS scoring is not yet available for CVE-2026-74286. Check NVD for updates.
Is there a patch for CVE-2026-74286?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.