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batman-adv: dat: ensure accessible eth_hdr proto field

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible eth_hdr proto field When batadv_get_vid() accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to other call sites, batadv_dat_get_vid() and its caller didn't make sure this is true. This could have caused an out-of-bounds access.

Announced Source revision 1
Original source ↗

CVE-2026-80599

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-80599

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "da3677b5ed362742d30ceab31bfafcdc74dc2642",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "6d3ea37074bb747f745d28138f87745ba9bd97c5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "7913935d41f166c367bbf7cc76a79e50044388e8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "3c62694c31f043568c3f4784b8d247cc3bea6b4c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "5836a050d02e9598fa0f71e88dde28b63dfa35e3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "8f76277d02176cd739945bba3379448e2e22e799",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "4407ff3af469356f9641c4a6e7072309bae86bea",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "be1db4f6615b5e6156c807ea8985171c215c2d57",
        "lessThan": "26560c4a03dc4d607331600c187f59ab2df5f341",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/batman-adv/distributed-arp-table.c",
      "net/batman-adv/main.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.13"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.13",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.261",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.212",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.178",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.145",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.97",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.40",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/batman-adv/distributed-arp-table.c",
      "net/batman-adv/main.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-80599

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#34340 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement