{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-89865",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-89865"
  ],
  "published": "2026-09-16T10:32:03Z",
  "summary": "scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers",
  "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 & 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.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-89865"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a476377a66897549dd49bee319f4df66623417b7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/09703bc7c0be3a7a155b0ff5f21f6765ba3f519c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/97c45c75f5cdec96b1a4fba8b1d55d0dd01af1e8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/84bde5ce4038d9ad811e5c994305bbfcbd7a9f79"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/581590f560b74399151b3cbc88574424c2f3d2dc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b157256c28086c434afd70cc78bf9b4d8caf1276"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a5501c42256235523c4dddf799f032dfbf4f4c77"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b47d4a1547d9ef21b2e9d1a739fe2204d4be05dc"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-16T10:32:03Z"
  }
}