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net: fib_rules: Don't dump dying fib_rule in fib_rules_dump().

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: fib_rules: Don't dump dying fib_rule in fib_rules_dump(). rocker_router_fib_event() calls fib_rule_get() during RCU dump. If the fib_rule is dying, refcount_inc() will complain about it. Let's call refcount_inc_not_zero() in fib_rules_dump().

Announced Source revision 1
Original source ↗

CVE-2026-74288

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-2026-74288

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": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "0f929b59f4cd0e05bb1ecefe12b77e85911d4be2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "4b7ae30c81c2ee10a644749a3704a5c797ccc308",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "2dfdc210d240bd48bb2ea746430b02b5571b6db9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "a7ef30753353ba6a95d693b1863a0214222a199a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "1fbc6c6efe78f4454a51afa0587efb6826f60f00",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "bb4a5b3c91af3c8d705bb2e9f6f8069a70db26fc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "3af0bc1bd9039e2e50abf3e2d7fee411f38bce4e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5d7bfd141924a5ece21eb612ad3c56612f041c1e",
        "lessThan": "2821e85c058f81c9948a2fb1a634f7b47457d51c",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "include/net/fib_rules.h",
      "net/core/fib_rules.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.12"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.12",
        "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": [
      "include/net/fib_rules.h",
      "net/core/fib_rules.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-74288

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#33082 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement