{"id":"CVE-2026-74474","revision":"e84ab08ddf544ebaa50b622709aeb744","records":[{"revision":"e84ab08ddf544ebaa50b622709aeb744","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74474","aliases":[],"title":"vxlan: use pskb_network_may_pull() for transmit path header pulls","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: use pskb_network_may_pull() for transmit path header pulls\n\nIn vxlan_xmit(), arp_reduce(), and vxlan_mdb_entry_skb_get(), pskb_may_pull() was\nbeing called to verify the availability of network layer headers (ARP, IPv6/ND,\nIP/IPv6 MDB keys).\n\nHowever, during transmit skb->data points to the MAC header, so skb_network_offset(skb)\nis ETH_HLEN (14 bytes). Using pskb_may_pull(skb, len) only checks len bytes from skb->data\nrather than skb_network_offset(skb) + len, which can leave part of the network header\nin non-linear frags.\n\nReplace these remaining pskb_may_pull() calls with pskb_network_may_pull() to properly\naccount for the MAC header offset.","state":0,"publishedAt":"2026-08-15T12:27:10.037+00:00","modifiedAt":"2026-10-16T19:05:48.132+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/vxlan/vxlan_core.c\",\n                        \"drivers/net/vxlan/vxlan_mdb.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"e4f67addf158f98f8197e08974966b18480dc751\",\n                            \"lessThan\": \"371425d4be7795e9158388af9eee0201e6047410\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e4f67addf158f98f8197e08974966b18480dc751\",\n                            \"lessThan\": \"bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e4f67addf158f98f8197e08974966b18480dc751\",\n                            \"lessThan\": \"6146901881f09ef063eb34ad389f63231f8486f5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e4f67addf158f98f8197e08974966b18480dc751\",\n                            \"lessThan\": \"94dee751aad627b3645d424b5d0c736d394573e9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e4f67addf158f98f8197e08974966b18480dc751\",\n                            \"lessThan\": \"7076a34b6e33315dc160b4612bfea1c597495585\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e4f67addf158f98f8197e08974966b18480dc751\",\n                            \"lessThan\": \"b9553558b48db54ac9273e6b98d7263ef5c1a329\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/vxlan/vxlan_core.c\",\n                        \"drivers/net/vxlan/vxlan_mdb.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.153\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.105\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.44\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.8\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/371425d4be7795e9158388af9eee0201e6047410","https://git.kernel.org/stable/c/bb01c51950c3ff3c76acdd54b85ab38ccc2a8bb4","https://git.kernel.org/stable/c/6146901881f09ef063eb34ad389f63231f8486f5","https://git.kernel.org/stable/c/94dee751aad627b3645d424b5d0c736d394573e9","https://git.kernel.org/stable/c/7076a34b6e33315dc160b4612bfea1c597495585","https://git.kernel.org/stable/c/b9553558b48db54ac9273e6b98d7263ef5c1a329"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74474","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74474","identifiers":["CVE-2026-74474"]},"retained":false,"historicalAffected":[]}],"coverage":[]}