{"id":"CVE-2026-53074","title":"bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb\n\nbpf_prog_test_run_skb() calls eth_type_trans() first and then uses\nskb->protocol to initialize sk family an…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 7254267799d083280c0e53effc101a33add95f7b","Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 6a9f38d5ff11e00bc54baab752642978805e81eb","Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < e6aa481f21fc7a41ed344767ea25aae9d03fae71","Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 0a04db240effd85773f66244645a28cedddb72d2","Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 1f882c492d46f90bdb36f4936876c88c28dab21c","Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 8042240412de3222d27b31e89d29336961cad9e4","Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 6def5fe753cbe5b279ee5fd10327b2611cbddaca","Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 12bec2bd4b76d81c5d3996bd14ec1b7f4d983747","Linux 5.9"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:17:52.434254Z"},"published":"2026-06-24","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:23:58.311Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53074","references":[{"url":"https://git.kernel.org/stable/c/7254267799d083280c0e53effc101a33add95f7b"},{"url":"https://git.kernel.org/stable/c/6a9f38d5ff11e00bc54baab752642978805e81eb"},{"url":"https://git.kernel.org/stable/c/e6aa481f21fc7a41ed344767ea25aae9d03fae71"},{"url":"https://git.kernel.org/stable/c/0a04db240effd85773f66244645a28cedddb72d2"},{"url":"https://git.kernel.org/stable/c/1f882c492d46f90bdb36f4936876c88c28dab21c"},{"url":"https://git.kernel.org/stable/c/8042240412de3222d27b31e89d29336961cad9e4"},{"url":"https://git.kernel.org/stable/c/6def5fe753cbe5b279ee5fd10327b2611cbddaca"},{"url":"https://git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747"}],"tags":["cve.org"],"epss":0.00114,"epssPercentile":0.01504,"ingestedAt":"2026-11-06T16:57:43.297Z","slug":"CVE-2026-53074","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb\n\nbpf_prog_test_run_skb() calls eth_type_trans() first and then uses\nskb->protocol to initialize sk family and address fields for the test\nrun.\n\nFor IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb)\neven when the provided test input only contains an Ethernet header.\n\nReject the input earlier if the Ethernet frame carries IPv4/IPv6\nEtherType but the L3 header is too short.\n\nFold the IPv4/IPv6 header length checks into the existing protocol\nswitch and return -EINVAL before accessing the network headers.\n\n## Affected\n\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 7254267799d083280c0e53effc101a33add95f7b`\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 6a9f38d5ff11e00bc54baab752642978805e81eb`\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < e6aa481f21fc7a41ed344767ea25aae9d03fae71`\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 0a04db240effd85773f66244645a28cedddb72d2`\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 1f882c492d46f90bdb36f4936876c88c28dab21c`\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 8042240412de3222d27b31e89d29336961cad9e4`\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 6def5fe753cbe5b279ee5fd10327b2611cbddaca`\n- `Linux >= fa5cb548ced61b9d3095f32f8a7e427a248c65ee < 12bec2bd4b76d81c5d3996bd14ec1b7f4d983747`\n- `Linux 5.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}