CVE-2026-52907 (GCVE-0-2026-52907)
Vulnerability from cvelistv5
Published
2026-06-09 12:36
Modified
2026-08-05 12:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: media: rockchip: rkcif: fix off by one bugs Change these comparisons from > vs >= to avoid accessing one element beyond the end of the arrays. While at it, use ARRAY_SIZE instead of the _MAX enum values. [fix cosmetic issues]
References
Impacted products
Vendor Product Version
Linux Linux Version: 1f2353f5a1af995efbf7bea44341aa0d03460b28
Version: 1f2353f5a1af995efbf7bea44341aa0d03460b28
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "73e119036b3a799170ed89907b4273c07306d611",
              "status": "affected",
              "version": "1f2353f5a1af995efbf7bea44341aa0d03460b28",
              "versionType": "git"
            },
            {
              "lessThan": "e4056b84af0fc18c84b4e5741df04ecd8ca17973",
              "status": "affected",
              "version": "1f2353f5a1af995efbf7bea44341aa0d03460b28",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/rockchip/rkcif/rkcif-capture-mipi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.4",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: rockchip: rkcif: fix off by one bugs\n\nChange these comparisons from \u003e vs \u003e= to avoid accessing one element\nbeyond the end of the arrays.\nWhile at it, use ARRAY_SIZE instead of the _MAX enum values.\n\n[fix cosmetic issues]"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable register helpers are reached only through local V4L2 capture device access (open/ioctl/streamon) on Rockchip RK3568 VICAP MIPI nodes, not via any network protocol.\nAC:L - No races or special memory layout are required; once out-of-range block/id/index values reach the helpers, the off-by-one access and resulting MMIO operations occur deterministically during normal streaming or IRQ handling.\nPR:L - Exploitation requires only local access to the V4L2 video capture device node (typically granted to unprivileged users in the video group), not root in the init namespace or special capabilities.\nUI:N - An attacker with access to the capture device can trigger the code path themselves via standard V4L2 streaming ioctls without requiring action from another user.\nS:U - Impact is confined to kernel/driver memory and Rockchip VICAP hardware programming within the same security authority; there is no VM, container, or IOMMU boundary crossing.\nC:H - The flaw is an out-of-bounds read of kernel match_data register tables; per guidance, OOB reads can leak adjacent kernel memory and enable crafting unintended MMIO offsets.\nI:H - The OOB-read value is summed into a hardware register address used by writel(), enabling misdirected MMIO writes including DMA address registers programmed during buffer queue operations.\nA:H - Out-of-bounds access can trigger KASAN/KFENCE faults or misprogrammed capture hardware leading to kernel oops, panic, or hung capture on affected Rockchip embedded systems."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:31:30.487Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/73e119036b3a799170ed89907b4273c07306d611"
        },
        {
          "url": "https://git.kernel.org/stable/c/e4056b84af0fc18c84b4e5741df04ecd8ca17973"
        }
      ],
      "title": "media: rockchip: rkcif: fix off by one bugs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-52907",
    "datePublished": "2026-06-09T12:36:04.617Z",
    "dateReserved": "2026-06-09T07:44:35.366Z",
    "dateUpdated": "2026-08-05T12:31:30.487Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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