{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5cebaac609744414463d1ecc28fdecd26c1b9bc1"
            },
            {
              "fixed": "db0f4531aa55cfb0171684ebfffe3ff04b79d5a8"
            },
            {
              "fixed": "0fac63cac6689588da530764ccb6ba55ee8e4d8b"
            },
            {
              "fixed": "5c35d380bea60503c4fe0986fe1de6a3263282b3"
            },
            {
              "fixed": "3d1b10d81fe54852ed953f4129577b733bbd6907"
            },
            {
              "fixed": "968c5213e34c48d35febdfd09cf3dc58ad039140"
            },
            {
              "fixed": "52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6"
            },
            {
              "fixed": "0e7f2cd72a4f9268ee09a13b13f3339e7cc71557"
            },
            {
              "fixed": "76e379754ba618989f6215be608d5c04774a611d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.18.0"
            },
            {
              "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-2026-89871.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: video-i2c: fix kthread error pointer left in kthread_vid_cap on failure\n\nkthread_run() returns an ERR_PTR on failure, not NULL.\nWhen start_streaming() fails, data-\u003ekthread_vid_cap is left holding\nthis error pointer instead of being cleared.\n\nThis causes two subsequent bugs:\n1. A future call to start_streaming() sees a non-NULL kthread_vid_cap\n   and returns 0 (success) immediately, without actually starting the\n   capture thread.\n2. A call to stop_streaming() checks 'kthread_vid_cap == NULL' which\n   is false for an error pointer, and proceeds to call kthread_stop()\n   on the error pointer, leading to a kernel crash.\n\nFix this by resetting kthread_vid_cap to NULL on failure before\njumping to the error path.",
  "id": "CVE-2026-89871",
  "modified": "2026-09-18T03:30:38.389515973Z",
  "published": "2026-09-16T10:31:39.961Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e7f2cd72a4f9268ee09a13b13f3339e7cc71557"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0fac63cac6689588da530764ccb6ba55ee8e4d8b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d1b10d81fe54852ed953f4129577b733bbd6907"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52fd9d80c0cea7bf09e7ee36cad316e5c39b7fe6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c35d380bea60503c4fe0986fe1de6a3263282b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76e379754ba618989f6215be608d5c04774a611d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/968c5213e34c48d35febdfd09cf3dc58ad039140"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db0f4531aa55cfb0171684ebfffe3ff04b79d5a8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89871.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89871"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "media: video-i2c: fix kthread error pointer left in kthread_vid_cap on failure"
}