{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-99002", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.385Z", "datePublished": "2026-10-23T12:20:22.763Z", "dateUpdated": "2026-10-24T14:09:57.241Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-24T14:09:57.241Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: validate pitch coming from userspace\n\nValidate the pitch, alongside the box dimensions before trying\nto copy data from the underlying surface. Fixes possible\nout of bounds reads with cursor snooping." } ], "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 - DRM_IOCTL_VMW_EXECBUF passes a locally supplied SVGA_3D_CMD_SURFACE_DMA through vmw_execbuf_process(), vmw_cmd_dma(), and vmw_kms_cursor_snoop(); the malformed guest.pitch and copy box originate in this ioctl, not a network protocol.\nAC:L - The attacker can create the required 64x64 A8R8G8B8 scanout surface and choose the box, pitch, and source BO. A 63x64 box with pitch 256 deterministically reaches the corrupting partial-copy loop without a race or attacker-uncontrolled condition.\nPR:L - VMW_CREATE_SURFACE, VMW_ALLOC_DMABUF, and VMW_EXECBUF are DRM_RENDER_ALLOW on a DRIVER_RENDER device; drm_ioctl_permit() therefore requires no DRM master, authentication, or capability from an unprivileged render-node client.\nUI:N - The attacker creates the surface and BO and submits the malformed DMA command through their own file descriptor; no victim must mount, open, or display anything.\nS:U - vmw_kms_cursor_snoop() corrupts the guest kernel's own cursor-snooper allocation from guest userspace. The code demonstrates neither host-memory corruption nor a guest-to-host or IOMMU-boundary escape.\nC:H - The unchecked pitch causes out-of-bounds source reads, while the attacker-controlled heap overwrite can corrupt neighboring pointer-bearing objects and be developed into arbitrary guest-kernel read primitives.\nI:H - snooper.image is a u32 pointer, but the vulnerable loop uses the 256-byte image_pitch as an element stride; a 63x64 copy writes controlled 252-byte rows at 1024-byte intervals far beyond the 16-KiB allocation, enabling control-flow hijacking.\nA:H - An excessive pitch can fault while reading beyond the TTM mapping, and the partial-copy destination bug can overwrite roughly 48 KiB beyond the snooper image, causing an oops or kernel panic." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/vmwgfx/vmwgfx_cursor_plane.c" ], "versions": [ { "version": "2ac863719e518ae1a8f328849e64ea26a222f079", "lessThan": "db6fbc2b77849e3c3c2bc115ea9ac925c4625a0d", "status": "affected", "versionType": "git" }, { "version": "2ac863719e518ae1a8f328849e64ea26a222f079", "lessThan": "f6d9c8abdf06a9c7efa799532d66ed8d5a50734c", "status": "affected", "versionType": "git" }, { "version": "2ac863719e518ae1a8f328849e64ea26a222f079", "lessThan": "76e5ddd7d9822c8c3492e0f50ba8978e093069ad", "status": "affected", "versionType": "git" }, { "version": "2ac863719e518ae1a8f328849e64ea26a222f079", "lessThan": "fcb137f6e7ed769f7ecad84364a33c451371b602", "status": "affected", "versionType": "git" }, { "version": "2ac863719e518ae1a8f328849e64ea26a222f079", "lessThan": "21bc51cb89ced74d6645a138cc2f21184bc75094", "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/vmwgfx/vmwgfx_cursor_plane.c" ], "versions": [ { "version": "3.2", "status": "affected" }, { "version": "0", "lessThan": "3.2", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.11", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "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": "3.2", "versionEndExcluding": "6.6.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.12.114" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.18.57" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.2.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/db6fbc2b77849e3c3c2bc115ea9ac925c4625a0d" }, { "url": "https://git.kernel.org/stable/c/f6d9c8abdf06a9c7efa799532d66ed8d5a50734c" }, { "url": "https://git.kernel.org/stable/c/76e5ddd7d9822c8c3492e0f50ba8978e093069ad" }, { "url": "https://git.kernel.org/stable/c/fcb137f6e7ed769f7ecad84364a33c451371b602" }, { "url": "https://git.kernel.org/stable/c/21bc51cb89ced74d6645a138cc2f21184bc75094" } ], "title": "drm/vmwgfx: validate pitch coming from userspace", "x_generator": { "engine": "bippy-1.2.0" } } } }