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blk-cgroup: fix UAF in __blkcg_rstat_flush()

cve-program · CVE-2026-63802

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/blk-cgroup.c"
                    ],
                    "versions": [
                        {
                            "version": "20cb1c2fb7568a6054c55defe044311397e01ddb",
                            "lessThan": "96e545410c4f74c89d496c1d5d9ef8d08f14368b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "20cb1c2fb7568a6054c55defe044311397e01ddb",
                            "lessThan": "bbebd9425cad3573d1527441753899b926525a0f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "20cb1c2fb7568a6054c55defe044311397e01ddb",
                            "lessThan": "5e5b7f2ef854936e95dceb6a2fdfefcb7152d2c6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "20cb1c2fb7568a6054c55defe044311397e01ddb",
                            "lessThan": "afebe44facc48a61761e885bbb7f0380d4a603ec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "20cb1c2fb7568a6054c55defe044311397e01ddb",
                            "lessThan": "0ab5ee5a1badb58cbb2242617cb01a4972b1f2a2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f6090d90f627d8c58f939067d6c6821ce1b3c68",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.3.9",
                            "lessThan": "6.4",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/blk-cgroup.c"
                    ],
                    "versions": [
                        {
                            "version": "6.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.144",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.95",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.38",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.3",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 8 Nov 18:59 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current