{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4d4df1932b6b116aecc81039066fec27f2050762"
            },
            {
              "fixed": "f8fc5cc6b3284506c6ab83c822c48133377668bb"
            },
            {
              "fixed": "f29695b1138ae2539c5cd6cdaba9b1b072aaa81a"
            },
            {
              "fixed": "13d645a2cdb224d27205368f3e3c68bb160daf97"
            },
            {
              "fixed": "2f847f06bb223aa895eea91fc9e5e2d6314038eb"
            },
            {
              "fixed": "1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79"
            },
            {
              "fixed": "e6cfb1ee18336aab41a0941d6d3ea5009aaafc05"
            },
            {
              "fixed": "9f31de4d07e4cde91dfc24522993a5fbb4d67083"
            },
            {
              "fixed": "9efaa782845b4d5fb3e01242be0d06ebc7428d8f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.26"
            },
            {
              "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-2026-89852.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state()\n\nThe mbx_cmd_t is allocated on the stack but left uninitialized.\nqla2x00_mailbox_command() has several early-return paths (PCI permanent\nfailure, device failed, EEH busy, ISP abort pending, mailbox access\ntimeout, purge mbox) that return without writing the input mailbox\nregisters back into mcp-\u003emb[]. qla2x00_get_firmware_state() then\nunconditionally copies mcp-\u003emb[1..6] (and mb[12]) into the caller's\nstates[] array regardless of the return value.\n\nOn such a failure the copied values are uninitialized kernel stack\nmemory, which is then exposed to userspace via the fw_state and\nmpi_fw_state sysfs handlers. Zero the mailbox struct so a failed query\nyields deterministic zeroed state instead of leaking stack contents.",
  "id": "CVE-2026-89852",
  "modified": "2026-09-18T03:30:58.177724313Z",
  "published": "2026-09-16T10:31:26.012Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13d645a2cdb224d27205368f3e3c68bb160daf97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f847f06bb223aa895eea91fc9e5e2d6314038eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9efaa782845b4d5fb3e01242be0d06ebc7428d8f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f31de4d07e4cde91dfc24522993a5fbb4d67083"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6cfb1ee18336aab41a0941d6d3ea5009aaafc05"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f29695b1138ae2539c5cd6cdaba9b1b072aaa81a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f8fc5cc6b3284506c6ab83c822c48133377668bb"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89852.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89852"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "scsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state()"
}