CVE-2026-23288 (GCVE-0-2026-23288)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-08-05 12:21
VLAI
Title
accel/amdxdna: Fix out-of-bounds memset in command slot handling
Summary
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix out-of-bounds memset in command slot handling The remaining space in a command slot may be smaller than the size of the command header. Clearing the command header with memset() before verifying the available slot space can result in an out-of-bounds write and memory corruption. Fix this by moving the memset() call after the size validation.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 13ae1a6000f7d8b09478e3128e87d45e89c7282f , < cca770d710d5e03bc814af585cd6975eb6d74074 (git)
Affected: 3d32eb7a5ecff92d83a5fd34c45c171c17d3d5d0 , < 1110a949675ebd56b3f0286e664ea543f745801c (git)
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Linux Linux Affected: 6.19.4 , < 6.19.7 (semver)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/aie2_message.c"
          ],
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          "vendor": "Linux",
          "versions": [
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          "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."
        }
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            {
              "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\u0027s 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."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:21:09.253Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "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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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23288",
    "datePublished": "2026-03-25T10:26:47.458Z",
    "dateReserved": "2026-01-13T15:37:45.992Z",
    "dateUpdated": "2026-08-05T12:21:09.253Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-08-05",
      "epss": "0.0012",
      "percentile": "0.02188"
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:19:56+00:00",
      "cve": "CVE-2026-23288",
      "id": "CVE-2026-23288",
      "initial_release_date": "2026-03-25T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: accel/amdxdna: Fix out-of-bounds memset in command slot handling",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23288.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-05-01T02:08:14Z",
      "cve": "CVE-2026-23288",
      "id": "CVE-2026-23288",
      "initial_release_date": "2026-03-25T16:57:10Z",
      "product_status:known_not_affected": "261",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23288",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23288.json",
      "version": "4"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.