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CVE-2026-93204 batman-adv: dat: atomically update mac addresses

🗓️ 17 Sep 2026 16:12:24Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Race condition in Linux kernel batman-adv dat allows poisoned ARP cache via half-updated MAC.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-93204
17 Sep 202616:12
cve
debiancve
Debian CVE
CVE-2026-93204
17 Sep 202616:12
debiancve
euvd
EUVD
EUVD-2026-82312
17 Sep 202616:12
euvd
nvd
NVD
CVE-2026-93204
17 Sep 202617:18
nvd
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/batman-adv/distributed-arp-table.c",
      "net/batman-adv/types.h"
    ],
    "versions": [
      {
        "version": "2f1dfbe185075a50dc8f0490a136377af53a1c62",
        "lessThan": "159360a0de831845c4500b4f8638decdcd624040",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f1dfbe185075a50dc8f0490a136377af53a1c62",
        "lessThan": "259db2c04586d40b82c5c3002b1e28b0698a0bb7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f1dfbe185075a50dc8f0490a136377af53a1c62",
        "lessThan": "1674855a5b6eacfe35f4db3095d7055c25467274",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f1dfbe185075a50dc8f0490a136377af53a1c62",
        "lessThan": "66238e2a74eca5dabf85b0cd2c3c944e474dc2fd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f1dfbe185075a50dc8f0490a136377af53a1c62",
        "lessThan": "a5e4d6cb4f6848b8906c1c493f99a8ccc0638515",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f1dfbe185075a50dc8f0490a136377af53a1c62",
        "lessThan": "f68038c77a2f38c09c7e2e4f7fa1f4e246fdf2c9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2f1dfbe185075a50dc8f0490a136377af53a1c62",
        "lessThan": "e6de568d3eda3e3c01c868fabd7a9535d5ee4a73",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/batman-adv/distributed-arp-table.c",
      "net/batman-adv/types.h"
    ],
    "versions": [
      {
        "version": "3.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.221",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.52",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.6",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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