CVE-2026-23063

{"id": "CVE-2026-23063", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "b457abeb5d962db88aaf60e249402fd3073dbfab", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "8b57bf1d3b1db692f34bce694a03e41be79f6016", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "336fb41a186e7c0415ae94fec9e23d1f04b87483", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "43f233eb6e7b9d88536881a9bc43726d0e34800d", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "47634d70073890c9c37e39ab4ff93d4b585b028a", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "92e4f11e29b98ef424ff72d6371acac03e5d973c", "versionType": "git"}, {"status": "affected", "version": "015d239ac0142ad0e26567fd890ef8d171f13709", "lessThan": "26c08dabe5475d99a13f353d8dd70e518de45663", "versionType": "git"}], "programFiles": ["drivers/misc/uacce/uacce.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.7"}, {"status": "unaffected", "version": "0", "lessThan": "5.7", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.249", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.199", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.162", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.122", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.68", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.8", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/misc/uacce/uacce.c"], "defaultStatus": "affected"}]}], "published": "2026-02-04T17:16:16.987", "references": [{"url": "https://git.kernel.org/stable/c/26c08dabe5475d99a13f353d8dd70e518de45663", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/336fb41a186e7c0415ae94fec9e23d1f04b87483", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/43f233eb6e7b9d88536881a9bc43726d0e34800d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/47634d70073890c9c37e39ab4ff93d4b585b028a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8b57bf1d3b1db692f34bce694a03e41be79f6016", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/92e4f11e29b98ef424ff72d6371acac03e5d973c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b457abeb5d962db88aaf60e249402fd3073dbfab", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "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."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nuacce: asegurar la liberaci\u00f3n segura de la cola con gesti\u00f3n de estado\n\nLlamar directamente a 'put_queue' conlleva riesgos ya que no puede garantizar que los recursos de 'uacce_queue' hayan sido completamente liberados de antemano. Por lo tanto, a\u00f1adir una operaci\u00f3n 'stop_queue' para el comando UACCE_CMD_PUT_Q y dejar la operaci\u00f3n 'put_queue' para la liberaci\u00f3n final de recursos garantiza la seguridad.\n\nLos estados de la cola se definen de la siguiente manera:\n- UACCE_Q_ZOMBIE: Estado inicial\n- UACCE_Q_INIT: Despu\u00e9s de abrir 'uacce'\n- UACCE_Q_STARTED: Despu\u00e9s de que se emite 'start' a trav\u00e9s de 'ioctl'\n\nAl ejecutar 'poweroff -f' en virt mientras el acelerador sigue funcionando, 'uacce_fops_release' y 'uacce_remove' pueden ejecutarse concurrentemente. Esto puede causar que 'uacce_put_queue' dentro de 'uacce_fops_release' acceda a un puntero 'ops' NULL. Por lo tanto, a\u00f1adir comprobaciones de estado para evitar acceder a punteros liberados."}], "lastModified": "2026-06-17T10:20:47.797", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B635197-F169-4155-A953-A712BDD15376", "versionEndExcluding": "5.10.249", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A247FBA6-BEB9-484F-B892-DD5517949CCD", "versionEndExcluding": "5.15.199", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6579E0D4-0641-479D-A4C3-0EF618798C55", "versionEndExcluding": "6.1.162", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8EAAE395-0162-4BAF-9AD5-E9AF3C869C4F", "versionEndExcluding": "6.6.122", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "52F38E19-0FDD-4992-9D6D-D4169D689598", "versionEndExcluding": "6.12.68", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E65C6E79-7EBE-4C77-93F0-818CF5B38F4E", "versionEndExcluding": "6.18.8", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}