{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "38f993ad8b1fe4caf9e989caf6e2a25aff3bbaf7"
            },
            {
              "fixed": "32a595dd3e8634544e5cfbc47f906dff3d3c1ef8"
            },
            {
              "fixed": "4b6f7bccc6559ae5c54573c284fe76eafc9989b2"
            },
            {
              "fixed": "2542516a147bfad740e7e411c251b639fad260ff"
            },
            {
              "fixed": "79f58f900dd221ab04ea74bf4eaf79fa3b0fcc77"
            },
            {
              "fixed": "d2ecaaab6a4f165abb54cdf61be60030b5782bf8"
            },
            {
              "fixed": "68d664f1b4efe525e99154b7058fcb0378bdaff7"
            },
            {
              "fixed": "dd739517560c8d0ec4463a53e717bf40b988d7da"
            },
            {
              "fixed": "e504cc888f42999dd76b6a43788c422610f2aad2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.27"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89879.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: bound JPEG frame size before copying into the buffer\n\ns2255_fillbuff() memcpy()s vc-\u003ejpg_size bytes of a captured JPEG/MJPEG\nframe into the vb2 plane.  vc-\u003ejpg_size is taken verbatim from the\nS2255_MARKER_FRAME header the device sends (pdword[4] in save_frame())\nand, unlike the frame payload length just above it, is never bounded:\n\n\tpayload = le32_to_cpu(pdword[3]);\n\tif (payload \u003e vc-\u003ereq_image_size)\t/* payload is checked ... */\n\t\treturn -EINVAL;\n\tvc-\u003epkt_size = payload;\n\tvc-\u003ejpg_size = le32_to_cpu(pdword[4]);\t/* ... jpg_size is not */\n\nA malicious or malfunctioning device can therefore report a jpg_size\nlarger than the destination vb2 plane, and the memcpy() writes past it.\njpg_size is a signed int, so a value with the top bit set also turns\ninto a huge length.\n\nReject a frame whose jpg_size is negative or exceeds the plane size\nbefore copying it.",
  "id": "CVE-2026-89879",
  "modified": "2026-09-18T03:30:26.561515655Z",
  "published": "2026-09-16T10:31:45.564Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2542516a147bfad740e7e411c251b639fad260ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32a595dd3e8634544e5cfbc47f906dff3d3c1ef8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b6f7bccc6559ae5c54573c284fe76eafc9989b2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68d664f1b4efe525e99154b7058fcb0378bdaff7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/79f58f900dd221ab04ea74bf4eaf79fa3b0fcc77"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2ecaaab6a4f165abb54cdf61be60030b5782bf8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd739517560c8d0ec4463a53e717bf40b988d7da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e504cc888f42999dd76b6a43788c422610f2aad2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89879.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89879"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "media: s2255: bound JPEG frame size before copying into the buffer"
}