What’s Vulnerable › Vulnerabilities

CVE-2026-74286: net: pfcp: allocate per-cpu tstats for PFCP netdevs

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-08-17

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().

Affected products

• Linux kernel: 6.10 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

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

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