{"id":"CVE-2026-74286","summary":"net: pfcp: allocate per-cpu tstats for PFCP netdevs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: pfcp: allocate per-cpu tstats for PFCP netdevs\n\nPFCP uses dev_get_tstats64() as its ndo_get_stats64 callback, but\npfcp_link_setup() does not request NETDEV_PCPU_STAT_TSTATS.  The net\ncore therefore leaves dev-\u003etstats NULL for PFCP devices.\n\nCreating a PFCP rtnetlink device can immediately ask the new netdev for\nstats while building the RTM_NEWLINK notification.  That reaches\ndev_get_tstats64() and dereferences the NULL dev-\u003etstats pointer.\n\nSet pcpu_stat_type to NETDEV_PCPU_STAT_TSTATS during PFCP link setup so\nthe net core allocates the storage expected by dev_get_tstats64().","modified":"2026-08-18T03:31:28.927816413Z","published":"2026-08-15T05:57:54.529Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74286.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/24041543da8cd84eb5d8ae738c534372fff54820"},{"type":"WEB","url":"https://git.kernel.org/stable/c/51a1d9836acc76a1bd16170b2f4b35f11036593f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/56b4ad500fd1282ef04db3c4beae5b54ab093a53"},{"type":"WEB","url":"https://git.kernel.org/stable/c/67e4b283de36d9eebf95acdea5d6674b6ef4b2f4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74286.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74286"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"76c8764ef36a5d37ea2e551bda28ac7f028383ba"},{"fixed":"56b4ad500fd1282ef04db3c4beae5b54ab093a53"},{"fixed":"51a1d9836acc76a1bd16170b2f4b35f11036593f"},{"fixed":"67e4b283de36d9eebf95acdea5d6674b6ef4b2f4"},{"fixed":"24041543da8cd84eb5d8ae738c534372fff54820"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74286.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.10.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74286.json"}}],"schema_version":"1.9.0"}