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CVE-2026-53074

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb

bpf_prog_test_run_skb() calls eth_type_trans() first and then uses skb->protocol to initialize sk family and address fields for the test run.

For IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb) even when the provided test input only contains an Ethernet header.

Reject the input earlier if the Ethernet frame carries IPv4/IPv6 EtherType but the L3 header is too short.

Fold the IPv4/IPv6 header length checks into the existing protocol switch and return -EINVAL before accessing the network headers.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

Mostrar
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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      "value": "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 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."
    }
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