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CVE-2022-50329 block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq

🗓️ 15 Sep 2025 14:49:32Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Block BFQ fixes use-after-free by delaying bfq_exit_bfqq after bic_set_bfqq.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "block/bfq-iosched.c"
    ],
    "versions": [
      {
        "version": "5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a",
        "lessThan": "1425f1bb5df5239021fd09ebc2a5e8070e705d36",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "094f3d9314d67691cb21ba091c1b528f6e3c4893",
        "lessThan": "7949b0df3dd9f4817ed4a4e989fa9ee81df6205f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b22fd72bfebda3956efc4431b60ddfc0a51e03e0",
        "lessThan": "cfe5b38c37720313eff0dec5517442c7ab3c9a20",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "761564d93c8265f65543acf0a576b32d66bfa26a",
        "lessThan": "1ed959fef5b1c6f1a7a3fbea543698c30ebd6678",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "64dc8c732f5c2b406cc752e6aaa1bd5471159cab",
        "lessThan": "246cf66e300b76099b5dbd3fdd39e9a5dbc53f02",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "block/bfq-iosched.c"
    ],
    "versions": [
      {
        "version": "5.15.86",
        "lessThan": "5.15.87",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.0.16",
        "lessThan": "6.0.17",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.2",
        "lessThan": "6.1.3",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  }
]

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11 May 2026 19:17Current
EPSS0.00154
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