185 lines
9.0 KiB
JSON
185 lines
9.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-68272",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-07-30T09:28:09.378Z",
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"datePublished": "2026-08-10T12:01:47.708Z",
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"dateUpdated": "2026-08-17T05:02:05.775Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-17T05:02:05.775Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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)"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c"
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],
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"versions": [
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{
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"version": "ac9287055ff16a092416c76a19006764e4c6a978",
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"lessThan": "3f190956404da55560056ce20606010e18bc059c",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ac9287055ff16a092416c76a19006764e4c6a978",
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"lessThan": "2aa9ea2bd5146d237c8cc16d8737d878b0298a94",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ac9287055ff16a092416c76a19006764e4c6a978",
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"lessThan": "315d2e5741a81b0be763e80413a2677e22b7e596",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ac9287055ff16a092416c76a19006764e4c6a978",
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"lessThan": "24668ca3ec19434d7a9574bf9112f2b0614c3a4e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ac9287055ff16a092416c76a19006764e4c6a978",
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"lessThan": "84c4c36acd5c4b2558b5069f869a165b2c655c84",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c"
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],
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"versions": [
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{
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"version": "6.5",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.5",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.148",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.101",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.42",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.6.148"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.12.101"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.18.42"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "7.1.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3f190956404da55560056ce20606010e18bc059c"
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},
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{
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"url": "https://git.kernel.org/stable/c/2aa9ea2bd5146d237c8cc16d8737d878b0298a94"
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},
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{
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"url": "https://git.kernel.org/stable/c/315d2e5741a81b0be763e80413a2677e22b7e596"
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},
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{
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"url": "https://git.kernel.org/stable/c/24668ca3ec19434d7a9574bf9112f2b0614c3a4e"
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},
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{
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"url": "https://git.kernel.org/stable/c/84c4c36acd5c4b2558b5069f869a165b2c655c84"
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}
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],
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"title": "drm/amdgpu: validate CP_GFX_SHADOW chunk size in CS pass1",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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} |