{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23288",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.992Z",
        "datePublished": "2026-03-25T10:26:47.458Z",
        "dateUpdated": "2026-08-05T12:21:09.253Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:21:09.253Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix out-of-bounds memset in command slot handling\n\nThe remaining space in a command slot may be smaller than the size of\nthe command header. Clearing the command header with memset() before\nverifying the available slot space can result in an out-of-bounds write\nand memory corruption.\n\nFix this by moving the memset() call after the size validation."
                }
            ],
            "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 - Triggered via DRM ioctl (AMDXDNA_EXEC_CMD) on the local /dev/accel device node. This is a PCI accelerator driver, not network-reachable.\nAC:L - The attacker can reliably trigger the OOB write by crafting a command chain that exhausts buffer space before the final slot. No race condition or special conditions required.\nPR:L - Requires opening the accelerator device file (/dev/accel/accel*). The ioctl has no DRM_MASTER requirement (flags=0), so any local user with device access can trigger it. No root or special capabilities needed.\nUI:N - No user interaction required. The attacker directly submits malicious commands through the DRM ioctl interface.\nS:U - The vulnerability stays within the kernel's security authority. No VM escape, IOMMU bypass, or sandbox boundary crossing is involved.\nC:H - The ~52-byte heap zero-fill corrupts adjacent kernel objects. This memory corruption can be leveraged through heap shaping to corrupt length fields or create UAF conditions, potentially enabling arbitrary memory reads.\nI:H - Out-of-bounds write of zeros into kernel heap memory corrupts adjacent objects. This can overwrite function pointers, metadata, or security-critical fields, potentially enabling code execution.\nA:H - The out-of-bounds memset corrupts kernel heap metadata and adjacent objects, reliably causing kernel crashes or oops when the corrupted data is subsequently accessed."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/accel/amdxdna/aie2_message.c"
                    ],
                    "versions": [
                        {
                            "version": "13ae1a6000f7d8b09478e3128e87d45e89c7282f",
                            "lessThan": "cca770d710d5e03bc814af585cd6975eb6d74074",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3d32eb7a5ecff92d83a5fd34c45c171c17d3d5d0",
                            "lessThan": "1110a949675ebd56b3f0286e664ea543f745801c",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/accel/amdxdna/aie2_message.c"
                    ],
                    "versions": [
                        {
                            "version": "6.19.4",
                            "lessThan": "6.19.7",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19.4",
                                    "versionEndExcluding": "6.19.7"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/cca770d710d5e03bc814af585cd6975eb6d74074"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1110a949675ebd56b3f0286e664ea543f745801c"
                }
            ],
            "title": "accel/amdxdna: Fix out-of-bounds memset in command slot handling",
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                "engine": "bippy-1.2.0"
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        }
    }
}