{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4"
            },
            {
              "fixed": "a476377a66897549dd49bee319f4df66623417b7"
            },
            {
              "fixed": "09703bc7c0be3a7a155b0ff5f21f6765ba3f519c"
            },
            {
              "fixed": "97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8"
            },
            {
              "fixed": "84bde5ce4038d9ad811e5c994305bbfcbd7a9f79"
            },
            {
              "fixed": "581590f560b74399151b3cbc88574424c2f3d2dc"
            },
            {
              "fixed": "b157256c28086c434afd70cc78bf9b4d8caf1276"
            },
            {
              "fixed": "a5501c42256235523c4dddf799f032dfbf4f4c77"
            },
            {
              "fixed": "b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2.0"
            },
            {
              "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-2026-89865.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers\n\nThe FRU and I2C bsg handlers stage their transfer in a DMA_POOL_SIZE\n(256-byte) bounce buffer obtained from dma_pool_alloc(), which does not\nzero the allocation. They initialize only a few leading bytes before\nhanding the buffer to qla2x00_write_sfp().\n\nqla2x00_write_sfp() can override the transfer length with a user-supplied\nvalue:\n\n\tif (len == 1)\n\t\topt |= BIT_0;\n\tif (opt \u0026 BIT_0)\n\t\tlen = *sfp;\n\n*sfp is the first byte of the (user-controlled) payload, so len can grow\nup to 255. The device then DMA-reads len bytes from the 256-byte pool\nbuffer. Since only a small prefix was written\n(e.g. MAX_FRU_SIZE == 36 bytes for a FRU version, one byte for a FRU\nstatus register), the hardware reads past the initialized region and\nwrites up to ~219 bytes of stale DMA-pool heap memory to the device\nflash.\n\nAllocate the buffer with dma_pool_zalloc() in all five FRU/I2C handlers\nso any bytes beyond the initialized data are zero rather than stale heap\ncontents.",
  "id": "CVE-2026-89865",
  "modified": "2026-09-18T03:30:40.719922352Z",
  "published": "2026-09-16T10:31:35.758Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09703bc7c0be3a7a155b0ff5f21f6765ba3f519c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/581590f560b74399151b3cbc88574424c2f3d2dc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84bde5ce4038d9ad811e5c994305bbfcbd7a9f79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a476377a66897549dd49bee319f4df66623417b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5501c42256235523c4dddf799f032dfbf4f4c77"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b157256c28086c434afd70cc78bf9b4d8caf1276"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89865.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89865"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers"
}