{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52987", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.376Z", "datePublished": "2026-06-24T16:29:01.633Z", "dateUpdated": "2026-06-28T06:37:40.546Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:37:40.546Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: avoid double drm_exec_fini() in userq validate\n\nWhen new_addition is true, amdgpu_userq_vm_validate() calls\ndrm_exec_fini(&exec) before iterating over the collected HMM ranges and\ncalling amdgpu_ttm_tt_get_user_pages().\n\nIf amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to\nunlock_all and calls drm_exec_fini(&exec) a second time on the same\nexec object. drm_exec_fini() is not idempotent: it frees exec->objects\nand may also drop exec->contended and finalize the ww acquire context.\n\nRoute that error path directly to the range cleanup once exec has\nalready been finalized.\n\nIssue found using a prototype static analysis tool\nand confirmed by code review.\n\n(cherry picked from commit 2802952e4a07306da6ebe813ff1acacc5691851a)"}], "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/amd/amdgpu/amdgpu_userq.c"], "versions": [{"version": "42f148788469792df207751e2339ef2bb8a1e33e", "lessThan": "c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38", "status": "affected", "versionType": "git"}, {"version": "42f148788469792df207751e2339ef2bb8a1e33e", "lessThan": "508babf310365f1107a2e8831c267c292a286818", "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/amd/amdgpu/amdgpu_userq.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "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": "6.19", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38"}, {"url": "https://git.kernel.org/stable/c/508babf310365f1107a2e8831c267c292a286818"}], "title": "drm/amdgpu: avoid double drm_exec_fini() in userq validate", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: drm/amdgpu: avoid double drm_exec_fini() in userq validate", "id": "2492365", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492365"}, "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-1341", "details": ["A flaw was found in the Linux kernel. A double free vulnerability exists in the `drm/amdgpu` component within the `userq validate` function. This issue arises because the `drm_exec_fini()` function is called twice on the same execution object, which is not designed to be idempotent. An attacker could potentially exploit this to cause a denial of service or lead to unpredictable system behavior."], "name": "CVE-2026-52987", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not 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-2026-52987\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52987\nhttps://lore.kernel.org/linux-cve-announce/2026062443-CVE-2026-52987-29bd@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[42f148788469792df207751e2339ef2bb8a1e33e,c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[42f148788469792df207751e2339ef2bb8a1e33e,508babf310365f1107a2e8831c267c292a286818)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T21:00:11.772978+00:00", "updated": "2026-06-28T13:15:16.465867+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}