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batman-adv: tt: avoid request storms during pending request

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid request storms during pending request batadv_send_tt_request() allocates a tt_req_node when none exists for the destination originator node. This should prevent that a multiple TT requests are send at the same time to an originator. But if allocation of the send buffer failed, this request must be cleaned up again. But indicator for such a failure is "ret == false". But the actual implementation is checking for "ret == true". The check must be inverted to not loose the information about the TT request directly after it was attempted to be sent out. This should avoid potential request storms.

Announced Source revision 1
Original source ↗

CVE-2026-72231

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-2026-72231

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": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "6055695ea40c64a47e00742c12c99b1a33b4daed",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "21c44a6895f41df811d1c91d10eea194dda2b345",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "5e46c76d9a5062212c4c5f642a5549fd9c057f8a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "067e413eec2e63c2996909ef55214b3a0eda0be7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "716f434eb35869e130424331584a91fbb729b9bd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "6a65ac8a81e903bb4b555c1d13532f5cb0167a4a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "aba1cf21954e64c36afb966b754adad2b0b8aa48",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "335fbe0f5d2501b7dd815806aef6fd9bad784eb1",
        "lessThan": "27c7d40008231ae4140d35501b60087a9de2d2c3",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/batman-adv/translation-table.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/translation-table.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-72231

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#32978 · Revision 1
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Publisher date
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