{"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": "2026-06-24T16:28:53.147Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:28:53.147Z"}, "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)"}], "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"}}}}

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