{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52976", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.376Z", "datePublished": "2026-06-24T16:28:53.147Z", "dateUpdated": "2026-06-30T02:42:25.300Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:37:31.524Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Fix error cleanup in xe_exec_queue_create_ioctl()\n\nTwo error handling issues exist in xe_exec_queue_create_ioctl():\n\n1. When xe_hw_engine_group_add_exec_queue() fails, the error path jumps\n to put_exec_queue which skips xe_exec_queue_kill(). If the VM is in\n preempt fence mode, xe_vm_add_compute_exec_queue() has already added\n the queue to the VM's compute exec queue list. Skipping the kill\n leaves the queue on that list, leading to a dangling pointer after\n the queue is freed.\n\n2. When xa_alloc() fails after xe_hw_engine_group_add_exec_queue() has\n succeeded, the error path does not call\n xe_hw_engine_group_del_exec_queue() to remove the queue from the hw\n engine group list. The queue is then freed while still linked into\n the hw engine group, causing a use-after-free.\n\nFix both by:\n- Changing the xe_hw_engine_group_add_exec_queue() failure path to jump\n to kill_exec_queue so that xe_exec_queue_kill() properly removes the\n queue from the VM's compute list.\n- Adding a del_hw_engine_group label before kill_exec_queue for the\n xa_alloc() failure path, which removes the queue from the hw engine\n group before proceeding with the rest of the cleanup.\n\n(cherry picked from commit 37c831f401746a45d510b312b0ed7a77b1e06ec8)"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/xe/xe_exec_queue.c"], "versions": [{"version": "7970cb36966c9b9183255dc097ae0446300eebcf", "lessThan": "f93b00161213a0fe9f7ff1d8498ee5ca9e0a5c43", "status": "affected", "versionType": "git"}, {"version": "7970cb36966c9b9183255dc097ae0446300eebcf", "lessThan": "753b149d5a433eb19e0c1b0eb4526a6e26120d1f", "status": "affected", "versionType": "git"}, {"version": "7970cb36966c9b9183255dc097ae0446300eebcf", "lessThan": "1be55646d8a2035343b012dcb12210db7bb8b056", "status": "affected", "versionType": "git"}, {"version": "7970cb36966c9b9183255dc097ae0446300eebcf", "lessThan": "f3cc22d4df3ed58439ea7e21daa54c3608e03b78", "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/gpu/drm/xe/xe_exec_queue.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.12", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f93b00161213a0fe9f7ff1d8498ee5ca9e0a5c43"}, {"url": "https://git.kernel.org/stable/c/753b149d5a433eb19e0c1b0eb4526a6e26120d1f"}, {"url": "https://git.kernel.org/stable/c/1be55646d8a2035343b012dcb12210db7bb8b056"}, {"url": "https://git.kernel.org/stable/c/f3cc22d4df3ed58439ea7e21daa54c3608e03b78"}], "title": "drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"affected": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "defaultStatus": "affected", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "defaultStatus": "affected", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat"}], "datePublic": "2026-06-24T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "A flaw was found in the Linux kernel. Specifically, within the `drm/xe` graphics driver, two error handling issues in the `xe_exec_queue_create_ioctl()` function could lead to memory corruption. This could result in a dangling pointer or a use-after-free vulnerability. A local attacker could potentially exploit these issues to cause a system crash (denial of service) or gain elevated privileges."}], "metrics": [{"other": {"content": {"namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-825", "description": "Expired Pointer Dereference", "lang": "en", "type": "CWE"}]}], "references": [{"tags": ["vdb-entry", "x_refsource_REDHAT"], "url": "https://access.redhat.com/security/cve/CVE-2026-52976"}, {"name": "RHBZ#2492284", "tags": ["issue-tracking", "x_refsource_REDHAT"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492284"}, {"tags": ["x_sadp-csaf-vex"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52976.json"}], "timeline": [{"lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-06-24T00:00:00.000Z", "value": "Made public."}], "title": "kernel: drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl()", "x_adpType": "supplier", "x_generator": {"engine": "sadp-cli 1.0.0"}, "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-06-30T02:42:25.300Z"}}]}}

{}

{}

{"bugzilla": {"description": "kernel: drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl()", "id": "2492284", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492284"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel. Specifically, within the `drm/xe` graphics driver, two error handling issues in the `xe_exec_queue_create_ioctl()` function could lead to memory corruption. This could result in a dangling pointer or a use-after-free vulnerability. A local attacker could potentially exploit these issues to cause a system crash (denial of service) or gain elevated privileges."], "name": "CVE-2026-52976", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52976\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52976\nhttps://lore.kernel.org/linux-cve-announce/2026062440-CVE-2026-52976-d615@gregkh/T"], "threat_severity": "Important"}

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