Skip to content
Heist/ feed
High

tipc: reject inverted service ranges from peer bindings

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: tipc: reject inverted service ranges from peer bindings tipc_update_nametbl() inserts a binding advertised by a peer node using the lower and upper service-range bounds taken directly from the wire, without checking that lower <= upper. The local bind path validates the ordering (tipc_uaddr_valid()), but the name-distribution path does not. A binding with lower > upper is inserted at the far end of the service-range rbtree (keyed on lower) where no lookup or withdrawal can ever match it (service_range_foreach_match() requires sr->lower <= end). The publication, its service_range node and the augmented rbtree entry are then leaked for the lifetime of the namespace, and there is no per-peer cap equivalent to TIPC_MAX_PUBL on locally created bindings. Reject inverted ranges in the network path as well. A peer node can otherwise leak unbounded binding-table memory by sending PUBLICATION items with lower > upper.

Announced Source revision 1
Original source ↗

CVE-2026-74281

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-2026-74281

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": "37922ea4a3105176357c8d565a9d982c4a08714a",
        "lessThan": "cd1955f81bd8ebeef51b324989ac871ad1947fb6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "37922ea4a3105176357c8d565a9d982c4a08714a",
        "lessThan": "f683200b83a0085d4e11abea8c1fdd9fdfb95b0b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "37922ea4a3105176357c8d565a9d982c4a08714a",
        "lessThan": "f1715d92ee3095d9215b493a8603a81f646fcf61",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "37922ea4a3105176357c8d565a9d982c4a08714a",
        "lessThan": "581ef56e5c34d475056ce086dc2ba0e872ba6857",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "37922ea4a3105176357c8d565a9d982c4a08714a",
        "lessThan": "7e401233f9bb74a626e70698d0d62f3a94ac0676",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "37922ea4a3105176357c8d565a9d982c4a08714a",
        "lessThan": "973bf0ed896b9898668dbadb82ed849d7d573010",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "37922ea4a3105176357c8d565a9d982c4a08714a",
        "lessThan": "2afb648f7b99216c687db1f89739c995e1144153",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/tipc/name_distr.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.17"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.17",
        "versionType": "semver"
      },
      {
        "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/tipc/name_distr.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-74281

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#33078 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement