{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23063",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.953Z",
        "datePublished": "2026-02-04T16:07:45.426Z",
        "dateUpdated": "2026-05-11T21:59:17.047Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:59:17.047Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuacce: ensure safe queue release with state management\n\nDirectly calling `put_queue` carries risks since it cannot\nguarantee that resources of `uacce_queue` have been fully released\nbeforehand. So adding a `stop_queue` operation for the\nUACCE_CMD_PUT_Q command and leaving the `put_queue` operation to\nthe final resource release ensures safety.\n\nQueue states are defined as follows:\n- UACCE_Q_ZOMBIE: Initial state\n- UACCE_Q_INIT: After opening `uacce`\n- UACCE_Q_STARTED: After `start` is issued via `ioctl`\n\nWhen executing `poweroff -f` in virt while accelerator are still\nworking, `uacce_fops_release` and `uacce_remove` may execute\nconcurrently. This can cause `uacce_put_queue` within\n`uacce_fops_release` to access a NULL `ops` pointer. Therefore, add\nstate checks to prevent accessing freed pointers."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/misc/uacce/uacce.c"
                    ],
                    "versions": [
                        {
                            "version": "015d239ac0142ad0e26567fd890ef8d171f13709",
                            "lessThan": "b457abeb5d962db88aaf60e249402fd3073dbfab",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "015d239ac0142ad0e26567fd890ef8d171f13709",
                            "lessThan": "8b57bf1d3b1db692f34bce694a03e41be79f6016",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "015d239ac0142ad0e26567fd890ef8d171f13709",
                            "lessThan": "336fb41a186e7c0415ae94fec9e23d1f04b87483",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "015d239ac0142ad0e26567fd890ef8d171f13709",
                            "lessThan": "43f233eb6e7b9d88536881a9bc43726d0e34800d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "015d239ac0142ad0e26567fd890ef8d171f13709",
                            "lessThan": "47634d70073890c9c37e39ab4ff93d4b585b028a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "015d239ac0142ad0e26567fd890ef8d171f13709",
                            "lessThan": "92e4f11e29b98ef424ff72d6371acac03e5d973c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "015d239ac0142ad0e26567fd890ef8d171f13709",
                            "lessThan": "26c08dabe5475d99a13f353d8dd70e518de45663",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/misc/uacce/uacce.c"
                    ],
                    "versions": [
                        {
                            "version": "5.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.249",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.199",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.162",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.122",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.68",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.8",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "5.10.249"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "5.15.199"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.12.68"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.18.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.19"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b457abeb5d962db88aaf60e249402fd3073dbfab"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8b57bf1d3b1db692f34bce694a03e41be79f6016"
                },
                {
                    "url": "https://git.kernel.org/stable/c/336fb41a186e7c0415ae94fec9e23d1f04b87483"
                },
                {
                    "url": "https://git.kernel.org/stable/c/43f233eb6e7b9d88536881a9bc43726d0e34800d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/47634d70073890c9c37e39ab4ff93d4b585b028a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/92e4f11e29b98ef424ff72d6371acac03e5d973c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/26c08dabe5475d99a13f353d8dd70e518de45663"
                }
            ],
            "title": "uacce: ensure safe queue release with state management",
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}