{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-80541", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.765Z", "datePublished": "2026-08-26T14:37:14.572Z", "dateUpdated": "2026-10-16T19:26:25.405Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-27T05:01:30.566Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: validate GEM_CREATE domain combinations\n\nAMDGPU_GEM_CREATE checked domain bits against AMDGPU_GEM_DOMAIN_MASK,\nbut did not validate domain combinations. Userspace could combine\nCPU|GTT|VRAM with DOORBELL, GDS, GWS, or OA, making\namdgpu_bo_placement_from_domain() exceed AMDGPU_BO_MAX_PLACEMENTS and\nhit BUG_ON().\n\nAllow combinations only within CPU/GTT/VRAM, and require non-CPU/GTT/\nVRAM domains to be specified one at a time. Return -EINVAL for invalid\ncombinations in amdgpu_gem_create_ioctl().\n\nv2: Rename helper from amdgpu_gem_domain_valid() to\n amdgpu_gem_are_domains_valid() (Christian)\n\n(cherry picked from commit db39852d0c39843cb02048dfb47e4b8c703e9080)" } ], "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" }, "scenarios": [ { "lang": "en", "value": "AV:L - The bug is reached only via DRM_IOCTL_AMDGPU_GEM_CREATE on a local amdgpu render node (/dev/dri/renderD*); userspace passes crafted domain flags into amdgpu_gem_create_ioctl(), which calls amdgpu_bo_placement_from_domain() during amdgpu_bo_create(). There is no network, adjacent-radio, or physical-access path to this code.\nAC:L - Triggering is a single deterministic ioctl with an invalid domain bitmask (e.g. CPU|GTT|VRAM|DOORBELL); the attacker fully controls the domains field and needs no race, special memory layout, or victim state. Invalid combinations reliably exceed AMDGPU_BO_MAX_PLACEMENTS (3) and hit BUG_ON() on every attempt.\nPR:L - AMDGPU_GEM_CREATE is registered with DRM_AUTH|DRM_RENDER_ALLOW, so any local unprivileged user who can open the render node (default on desktops, ChromeOS, Steam Deck, and cloud GPU tenants via render/video group or ACL) can invoke it without real root or init-namespace capabilities.\nUI:N - The attacking process performs the GEM_CREATE ioctl itself; no other user must mount a filesystem, open a file, click a link, or take any other action for the invalid domain combination to reach amdgpu_bo_placement_from_domain() and panic the kernel.\nS:U - Impact is confined to host-kernel memory corruption and panic within the amdgpu/TTM driver; it does not cross a VM, IOMMU, or sandbox security boundary, and is standard local kernel privilege-escalation/DoS scope rather than a guest-to-host escape.\nC:H - Before BUG_ON(), amdgpu_bo_placement_from_domain() writes past the fixed placements[AMDGPU_BO_MAX_PLACEMENTS] array into adjacent amdgpu_bo fields (including struct ttm_placement) with attacker-influenced mem_type and flag values; this out-of-bounds write is memory corruption that could be leveraged for kernel info disclosure.\nI:H - The same out-of-bounds placement writes corrupt adjacent kernel heap objects in the amdgpu_bo allocation with partially attacker-controlled ttm_place contents; out-of-bounds writes into kernel structures are classed as high integrity impact and could enable further heap corruption or control-flow hijacking.\nA:H - Once placement count exceeds three the kernel hits BUG_ON(c > AMDGPU_BO_MAX_PLACEMENTS), causing an oops or panic; an unprivileged GPU client on shared AMD hardware (multi-user workstations or cloud GPU nodes) can repeatedly crash the entire host, denying service to all co-tenants." } ] } ], "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_gem.c" ], "versions": [ { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "5c73485af7ad9c3ae592db3481f370bc07705391", "status": "affected", "versionType": "git" }, { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "584e3d47736fe2e7184ef3fc16b00b41485f96c6", "status": "affected", "versionType": "git" }, { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "66133fc05c3af002f45de8a71b833c026ccbfba6", "status": "affected", "versionType": "git" }, { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "ce5da474c3ddf7cccec5dce6aa4296297dd7caff", "status": "affected", "versionType": "git" }, { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "493355096e397f9217b41c8574ed2784c7351443", "status": "affected", "versionType": "git" }, { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "220aa2589d7321fb68d2e8597862711b5f22ae0b", "status": "affected", "versionType": "git" }, { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "80f0b53860d02577709d69a312a29ca674b9297c", "status": "affected", "versionType": "git" }, { "version": "77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd", "lessThan": "5e9d136ad74df4edec67e502ce267597064d8f86", "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_gem.c" ], "versions": [ { "version": "4.20", "status": "affected" }, { "version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.266", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.217", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.153", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.105", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.10", "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": "4.20", "versionEndExcluding": "5.10.266" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.15.217" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.1.184" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.6.153" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.12.105" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.18.46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.1.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5c73485af7ad9c3ae592db3481f370bc07705391" }, { "url": "https://git.kernel.org/stable/c/584e3d47736fe2e7184ef3fc16b00b41485f96c6" }, { "url": "https://git.kernel.org/stable/c/66133fc05c3af002f45de8a71b833c026ccbfba6" }, { "url": "https://git.kernel.org/stable/c/ce5da474c3ddf7cccec5dce6aa4296297dd7caff" }, { "url": "https://git.kernel.org/stable/c/493355096e397f9217b41c8574ed2784c7351443" }, { "url": "https://git.kernel.org/stable/c/220aa2589d7321fb68d2e8597862711b5f22ae0b" }, { "url": "https://git.kernel.org/stable/c/80f0b53860d02577709d69a312a29ca674b9297c" }, { "url": "https://git.kernel.org/stable/c/5e9d136ad74df4edec67e502ce267597064d8f86" } ], "title": "drm/amdgpu: validate GEM_CREATE domain combinations", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-80541", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-10-16T19:16:50.760391Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:26:25.405Z" } } ] } }