{"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":"2026-08-27T05:01:30.566Z"},"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"}}}}