268 lines
13 KiB
JSON
268 lines
13 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-2026-46199",
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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": "2026-05-13T15:03:33.104Z",
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"datePublished": "2026-05-28T09:40:16.061Z",
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"dateUpdated": "2026-10-19T19:36:54.755Z"
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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": "2026-08-05T12:30:24.038Z"
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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/vcn4: Prevent OOB reads when parsing dec msg\n\nCheck bounds against the end of the BO whenever we access the msg."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The bug is reached only through the local DRM command-submission ioctl (DRM_IOCTL_AMDGPU_CS) on /dev/dri/renderD*; there is no network path to the GPU CS parser.\nAC:L - The attacker fully controls the decode-message contents (num_buffers, offset, size) and the BO size, so the out-of-bounds read is triggered deterministically with no race or uncontrolled condition.\nPR:L - The CS ioctl is DRM_RENDER_ALLOW, accessible to any unprivileged local user holding an fd to the render node; no root or special capability is required.\nUI:N - The attacker directly submits the crafted command buffer; no action by another user is needed.\nS:U - The OOB read is performed by the CPU within the kernel's own kmap of the BO; the impact stays within the kernel security authority with no IOMMU/VM boundary crossed.\nC:H - num_buffers and offset are attacker-controlled 32-bit values, producing an unbounded out-of-bounds read of kernel memory well beyond a few bytes, which per guidance is High.\nI:N - The flaw is purely an out-of-bounds read; no kernel memory is written or otherwise modified along the path.\nA:H - The unbounded OOB read into unmapped kernel memory triggers a page fault/oops, crashing the kernel."
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}
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]
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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/vcn_v4_0.c"
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],
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"versions": [
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{
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"version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44",
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"lessThan": "88411caee8f576d6b5abf6531232fcc0ce756dc5",
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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": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44",
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"lessThan": "c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e",
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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": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44",
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"lessThan": "7688143ca62edeecacb3ba0a2cea129dbd262a18",
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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": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44",
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"lessThan": "63b51e8a9d54317d31cc3856c1e12407070d5fc2",
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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": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44",
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"lessThan": "3c817a60b09eaab926e475088e750936efcc95ae",
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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": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44",
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"lessThan": "0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648",
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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/vcn_v4_0.c"
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],
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"versions": [
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{
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"version": "5.13",
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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": "5.13",
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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": "6.1.175",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.140",
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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": "6.12.90",
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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": "6.18.32",
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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": "7.0.9",
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"lessThanOrEqual": "7.0.*",
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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",
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.13",
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"versionEndExcluding": "6.1.175"
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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": "5.13",
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"versionEndExcluding": "6.6.140"
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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/88411caee8f576d6b5abf6531232fcc0ce756dc5"
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},
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{
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"url": "https://git.kernel.org/stable/c/c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e"
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},
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{
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"url": "https://git.kernel.org/stable/c/7688143ca62edeecacb3ba0a2cea129dbd262a18"
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},
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{
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"url": "https://git.kernel.org/stable/c/63b51e8a9d54317d31cc3856c1e12407070d5fc2"
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},
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{
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"url": "https://git.kernel.org/stable/c/3c817a60b09eaab926e475088e750936efcc95ae"
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},
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{
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"url": "https://git.kernel.org/stable/c/0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648"
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}
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],
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"title": "drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-46199",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:21:02.273163Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-125",
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"description": "CWE-125 Out-of-bounds Read"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T19:36:54.755Z"
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}
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}
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]
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}
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} |