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CVE-2022-50452 net: sched: cake: fix null pointer access issue when cake_init() fails

🗓️ 01 Oct 2025 11:45:25Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Fix null pointer dereference in cake when cake_init() fails during mqprio_init() with default qdisc.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sched/sch_cake.c"
    ],
    "versions": [
      {
        "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b",
        "lessThan": "86aa1390898146f1de277bb6d2a8ed7fc7a43f12",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b",
        "lessThan": "bc8301ea7e7f1bb9d2ba2fcdf7b5ec2f0792b47e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b",
        "lessThan": "ae48bee2830bf216800e1447baca39541e27a12e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b",
        "lessThan": "154f4c06d9dbec1a14e91286c70b6305810302e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b",
        "lessThan": "1dc0a019550fd38ec6cab2d73c90df2bd659c96b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "046f6fd5daefac7f5abdafb436b30f63bc7c602b",
        "lessThan": "51f9a8921ceacd7bf0d3f47fa867a64988ba1dcb",
        "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/sched/sch_cake.c"
    ],
    "versions": [
      {
        "version": "4.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.264",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.221",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.152",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.76",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.6",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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