{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-46230", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.106Z", "datePublished": "2026-05-28T09:40:52.696Z", "dateUpdated": "2026-08-05T12:30:37.247Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:30:37.247Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg\n\nCheck bounds against the end of the BO whenever we access the msg." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - Reached only via the local DRM_IOCTL_AMDGPU_CS ioctl on the GPU render node; the malicious message must be submitted by a local process holding a device fd, not over any network.\nAC:L - The attacker fully controls the message BO it allocates and references (length, num_buffers, offset/size), so it can deterministically set out-of-range values to trigger the OOB read with no race or uncontrolled condition.\nPR:L - The CS ioctl is DRM_RENDER_ALLOW, reachable by any unprivileged local user/sandboxed client with access to a render node; no root or special capability is required.\nUI:N - The attacker submits the crafted command stream directly; no victim action is needed.\nS:U - The out-of-bounds access stays within the kernel's own memory and security authority; no VM/IOMMU/sandbox boundary is crossed.\nC:H - Attacker-controlled num_buffers and offset drive an unbounded out-of-bounds read of kernel memory well beyond a few bytes, which per guidance is treated as High confidentiality impact.\nI:N - The flaw is purely an out-of-bounds read; no out-of-range data is ever written back, so there is no memory-modification or control-flow-corruption primitive.\nA:H - Iterating over an attacker-supplied huge num_buffers reads past the kmapped buffer into unmapped memory, causing a kernel page fault/oops (crash)." } ] } ], "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/vcn_v3_0.c" ], "versions": [ { "version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44", "lessThan": "f55552adb100eb54a6e6dabff4fbdc8679bd3fa0", "status": "affected", "versionType": "git" }, { "version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44", "lessThan": "82c535eff05490c71153af57de9fe85502fcb5d5", "status": "affected", "versionType": "git" }, { "version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44", "lessThan": "638d3e0b9eb77aa53fdd60e2b928761d16ba76fa", "status": "affected", "versionType": "git" }, { "version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44", "lessThan": "870c8738c3774336baedddd0240951d078a703b8", "status": "affected", "versionType": "git" }, { "version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44", "lessThan": "638e48ee39d0f2af9336f917a6f5d6692dd64d93", "status": "affected", "versionType": "git" }, { "version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44", "lessThan": "e382e0b81a3e7bd21504fee1d01ae8b08f84d3a7", "status": "affected", "versionType": "git" }, { "version": "87cc7f9ebf7ce10f82250002d667ef3e93a79d44", "lessThan": "b193019860d61e92da395eae2011f2f6716b182f", "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/vcn_v3_0.c" ], "versions": [ { "version": "5.13", "status": "affected" }, { "version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.90", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.32", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.9", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "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": "5.13", "versionEndExcluding": "5.15.209" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.1.175" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.6.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.12.90" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.18.32" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "7.0.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f55552adb100eb54a6e6dabff4fbdc8679bd3fa0" }, { "url": "https://git.kernel.org/stable/c/82c535eff05490c71153af57de9fe85502fcb5d5" }, { "url": "https://git.kernel.org/stable/c/638d3e0b9eb77aa53fdd60e2b928761d16ba76fa" }, { "url": "https://git.kernel.org/stable/c/870c8738c3774336baedddd0240951d078a703b8" }, { "url": "https://git.kernel.org/stable/c/638e48ee39d0f2af9336f917a6f5d6692dd64d93" }, { "url": "https://git.kernel.org/stable/c/e382e0b81a3e7bd21504fee1d01ae8b08f84d3a7" }, { "url": "https://git.kernel.org/stable/c/b193019860d61e92da395eae2011f2f6716b182f" } ], "title": "drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg", "x_generator": { "engine": "bippy-1.2.0" } } } }