CVE-2026-80541 (GCVE-0-2026-80541)
Vulnerability from cvelistv5
Published
2026-08-26 14:37
Modified
2026-08-27 05:01
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: validate GEM_CREATE domain combinations
AMDGPU_GEM_CREATE checked domain bits against AMDGPU_GEM_DOMAIN_MASK,
but did not validate domain combinations. Userspace could combine
CPU|GTT|VRAM with DOORBELL, GDS, GWS, or OA, making
amdgpu_bo_placement_from_domain() exceed AMDGPU_BO_MAX_PLACEMENTS and
hit BUG_ON().
Allow combinations only within CPU/GTT/VRAM, and require non-CPU/GTT/
VRAM domains to be specified one at a time. Return -EINVAL for invalid
combinations in amdgpu_gem_create_ioctl().
v2: Rename helper from amdgpu_gem_domain_valid() to
amdgpu_gem_are_domains_valid() (Christian)
(cherry picked from commit db39852d0c39843cb02048dfb47e4b8c703e9080)
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd Version: 77a2faa55c1a497f4e7e89eabd11830f0e3cb3dd |
||
{
"containers": {
"cna": {
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"drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"version": "4.20"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
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{
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"status": "unaffected",
"version": "5.10.266",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.217",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.184",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.153",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.105",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.46",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
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{
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}
],
"negate": false,
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],
"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": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"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 \u003e 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."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-27T05:01:30.566Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"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": {
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},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-80541",
"datePublished": "2026-08-26T14:37:14.572Z",
"dateReserved": "2026-08-26T14:34:25.765Z",
"dateUpdated": "2026-08-27T05:01:30.566Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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