{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0120dd6e4e202e19a0e011e486fb2da40a5ea279"
            },
            {
              "fixed": "2d1f18efccdb8b29552399d024c36b705447e975"
            },
            {
              "fixed": "35d3300f6357cfaa72db2721dc2b345b19bac5df"
            },
            {
              "fixed": "a02363f71a79b755daa78a70d6b217f9c13c8c85"
            },
            {
              "fixed": "68ce397e8236088fc53b9532d383a722288c8194"
            },
            {
              "fixed": "e3668b371329ea036ff022ce8ecc82f8befcf003"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.4.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.86"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.27"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46089.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nzram: do not forget to endio for partial discard requests\n\nAs reported by Qu Wenruo and Avinesh Kumar, the following\n\n getconf PAGESIZE\n 65536\n blkdiscard -p 4k /dev/zram0\n\ntakes literally forever to complete.  zram doesn't support partial\ndiscards and just returns immediately w/o doing any discard work in such\ncases.  The problem is that we forget to endio on our way out, so\nblkdiscard sleeps forever in submit_bio_wait().  Fix this by jumping to\nend_bio label, which does bio_endio().",
  "id": "CVE-2026-46089",
  "modified": "2026-07-15T01:49:17.878935926Z",
  "published": "2026-05-27T12:58:32.606Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d1f18efccdb8b29552399d024c36b705447e975"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35d3300f6357cfaa72db2721dc2b345b19bac5df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68ce397e8236088fc53b9532d383a722288c8194"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a02363f71a79b755daa78a70d6b217f9c13c8c85"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3668b371329ea036ff022ce8ecc82f8befcf003"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46089.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46089"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "zram: do not forget to endio for partial discard requests"
}