CVE-2026-74286
Last modified
CVE-2026-74286 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
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().
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 76c8764ef36a5d37ea2e551bda28ac7f028383ba, < 56b4ad500fd1282ef04db3c4beae5b54ab093a53; >= 76c8764ef36a5d37ea2e551bda28ac7f028383ba, < 51a1d9836acc76a1bd16170b2f4b35f11036593f; >= 76c8764ef36a5d37ea2e551bda28ac7f028383ba, < 67e4b283de36d9eebf95acdea5d6674b6ef4b2f4; >= 76c8764ef36a5d37ea2e551bda28ac7f028383ba, < 24041543da8cd84eb5d8ae738c534372fff54820 |
| Linux | Linux | 6.10 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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