CVE-2026-68272

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68272", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.378Z", "datePublished": "2026-08-10T12:01:47.708Z", "dateUpdated": "2026-08-17T05:02:05.775Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:02:05.775Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: validate CP_GFX_SHADOW chunk size in CS pass1\n\nAdd a minimum-length check for the AMDGPU_CHUNK_ID_CP_GFX_SHADOW chunk in\namdgpu_cs_pass1(), matching the gate already present for the IB, FENCE and\nBO_HANDLES chunk types.\n\nThe CP_GFX_SHADOW case previously shared a bare break with the dependency\nand syncobj chunk types, which do not dereference a fixed-size struct. When\nuserspace submits this chunk with length_dw == 0, vmemdup_array_user() is\ncalled with size 0 and returns ZERO_SIZE_PTR, which passes the IS_ERR()\ncheck. amdgpu_cs_p2_shadow() then dereferences chunk->kdata as a struct\ndrm_amdgpu_cs_chunk_cp_gfx_shadow (reading shadow->flags), faulting on the\nZERO_SIZE_PTR and causing a NULL-pointer dereference.\n\nThis is reachable by an unprivileged process in the render group. Reject\nundersized chunks with -EINVAL during pass1 so the bad submission is\nrejected before pass2 ever dereferences the data.\n\n(cherry picked from commit 7f61b2eef7415eccdb40850aca0de94211948657)"}], "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_cs.c"], "versions": [{"version": "ac9287055ff16a092416c76a19006764e4c6a978", "lessThan": "3f190956404da55560056ce20606010e18bc059c", "status": "affected", "versionType": "git"}, {"version": "ac9287055ff16a092416c76a19006764e4c6a978", "lessThan": "2aa9ea2bd5146d237c8cc16d8737d878b0298a94", "status": "affected", "versionType": "git"}, {"version": "ac9287055ff16a092416c76a19006764e4c6a978", "lessThan": "315d2e5741a81b0be763e80413a2677e22b7e596", "status": "affected", "versionType": "git"}, {"version": "ac9287055ff16a092416c76a19006764e4c6a978", "lessThan": "24668ca3ec19434d7a9574bf9112f2b0614c3a4e", "status": "affected", "versionType": "git"}, {"version": "ac9287055ff16a092416c76a19006764e4c6a978", "lessThan": "84c4c36acd5c4b2558b5069f869a165b2c655c84", "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_cs.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.5", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3f190956404da55560056ce20606010e18bc059c"}, {"url": "https://git.kernel.org/stable/c/2aa9ea2bd5146d237c8cc16d8737d878b0298a94"}, {"url": "https://git.kernel.org/stable/c/315d2e5741a81b0be763e80413a2677e22b7e596"}, {"url": "https://git.kernel.org/stable/c/24668ca3ec19434d7a9574bf9112f2b0614c3a4e"}, {"url": "https://git.kernel.org/stable/c/84c4c36acd5c4b2558b5069f869a165b2c655c84"}], "title": "drm/amdgpu: validate CP_GFX_SHADOW chunk size in CS pass1", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3f190956404da55560056ce20606010e18bc059c", "status": "affected", "version": "ac9287055ff16a092416c76a19006764e4c6a978", "versionType": "git"}, {"lessThan": "2aa9ea2bd5146d237c8cc16d8737d878b0298a94", "status": "affected", "version": "ac9287055ff16a092416c76a19006764e4c6a978", "versionType": "git"}, {"lessThan": "315d2e5741a81b0be763e80413a2677e22b7e596", "status": "affected", "version": "ac9287055ff16a092416c76a19006764e4c6a978", "versionType": "git"}, {"lessThan": "24668ca3ec19434d7a9574bf9112f2b0614c3a4e", "status": "affected", "version": "ac9287055ff16a092416c76a19006764e4c6a978", "versionType": "git"}, {"lessThan": "84c4c36acd5c4b2558b5069f869a165b2c655c84", "status": "affected", "version": "ac9287055ff16a092416c76a19006764e4c6a978", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"lessThan": "6.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: validate CP_GFX_SHADOW chunk size in CS pass1\n\nAdd a minimum-length check for the AMDGPU_CHUNK_ID_CP_GFX_SHADOW chunk in\namdgpu_cs_pass1(), matching the gate already present for the IB, FENCE and\nBO_HANDLES chunk types.\n\nThe CP_GFX_SHADOW case previously shared a bare break with the dependency\nand syncobj chunk types, which do not dereference a fixed-size struct. When\nuserspace submits this chunk with length_dw == 0, vmemdup_array_user() is\ncalled with size 0 and returns ZERO_SIZE_PTR, which passes the IS_ERR()\ncheck. amdgpu_cs_p2_shadow() then dereferences chunk->kdata as a struct\ndrm_amdgpu_cs_chunk_cp_gfx_shadow (reading shadow->flags), faulting on the\nZERO_SIZE_PTR and causing a NULL-pointer dereference.\n\nThis is reachable by an unprivileged process in the render group. Reject\nundersized chunks with -EINVAL during pass1 so the bad submission is\nrejected before pass2 ever dereferences the data.\n\n(cherry picked from commit 7f61b2eef7415eccdb40850aca0de94211948657)"}], "id": "CVE-2026-68272", "lastModified": "2026-08-17T05:18:29.733", "metrics": {}, "published": "2026-08-10T13:20:16.220", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/24668ca3ec19434d7a9574bf9112f2b0614c3a4e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2aa9ea2bd5146d237c8cc16d8737d878b0298a94"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/315d2e5741a81b0be763e80413a2677e22b7e596"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3f190956404da55560056ce20606010e18bc059c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/84c4c36acd5c4b2558b5069f869a165b2c655c84"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel drm/amdgpu: Denial of Service via improper memory access", "id": "2513231", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513231"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu: validate CP_GFX_SHADOW chunk size in CS pass1\nAdd a minimum-length check for the AMDGPU_CHUNK_ID_CP_GFX_SHADOW chunk in\namdgpu_cs_pass1(), matching the gate already present for the IB, FENCE and\nBO_HANDLES chunk types.\nThe CP_GFX_SHADOW case previously shared a bare break with the dependency\nand syncobj chunk types, which do not dereference a fixed-size struct. When\nuserspace submits this chunk with length_dw == 0, vmemdup_array_user() is\ncalled with size 0 and returns ZERO_SIZE_PTR, which passes the IS_ERR()\ncheck. amdgpu_cs_p2_shadow() then dereferences chunk->kdata as a struct\ndrm_amdgpu_cs_chunk_cp_gfx_shadow (reading shadow->flags), faulting on the\nZERO_SIZE_PTR and causing a NULL-pointer dereference.\nThis is reachable by an unprivileged process in the render group. Reject\nundersized chunks with -EINVAL during pass1 so the bad submission is\nrejected before pass2 ever dereferences the data.\n(cherry picked from commit 7f61b2eef7415eccdb40850aca0de94211948657)", "A flaw was found in the Linux kernel's `drm/amdgpu` component. An unprivileged local attacker can exploit this vulnerability by submitting a specially crafted command with a zero-length chunk size for `CP_GFX_SHADOW`. This leads to improper memory access within the kernel, causing a system crash and a denial of service (DoS)."], "name": "CVE-2026-68272", "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:01:47Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68272\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68272\nhttps://git.kernel.org/stable/c/24668ca3ec19434d7a9574bf9112f2b0614c3a4e\nhttps://git.kernel.org/stable/c/2aa9ea2bd5146d237c8cc16d8737d878b0298a94\nhttps://git.kernel.org/stable/c/315d2e5741a81b0be763e80413a2677e22b7e596\nhttps://git.kernel.org/stable/c/3f190956404da55560056ce20606010e18bc059c\nhttps://git.kernel.org/stable/c/84c4c36acd5c4b2558b5069f869a165b2c655c84"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac9287055ff16a092416c76a19006764e4c6a978,3f190956404da55560056ce20606010e18bc059c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac9287055ff16a092416c76a19006764e4c6a978,2aa9ea2bd5146d237c8cc16d8737d878b0298a94)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac9287055ff16a092416c76a19006764e4c6a978,315d2e5741a81b0be763e80413a2677e22b7e596)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac9287055ff16a092416c76a19006764e4c6a978,24668ca3ec19434d7a9574bf9112f2b0614c3a4e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac9287055ff16a092416c76a19006764e4c6a978,84c4c36acd5c4b2558b5069f869a165b2c655c84)"}}], "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": "6.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "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": "2026-08-10T15:45:03.652805+00:00", "updated": "2026-08-13T04:45:02.890317+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}