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scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions() qla2x00_update_fru_versions() copies the user-supplied BSG request into a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates list->count times over the qla_image_version array embedded in that buffer, advancing the image pointer each iteration. count is taken directly from user input with no upper bound, while only (DMA_POOL_SIZE - sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries actually fit. A larger count walks the image pointer off the end of the stack buffer, reading adjacent kernel stack memory and sending it to the device via qla2x00_write_sfp(). Reject requests whose declared count does not fit in the buffer.

Announced Group revision 1
Original source ↗

CVE-2026-89858

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-89858

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "af733bbfcf667af1871a2735fba2835b0da71efb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "a9706d5e754e77515a92bb532bd0d73644979a1f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "7e3154c97ec15460f715dbbe4097c255cce110b1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "047f1f7ee6f85bde28abfdda9fa550191ddc0532",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "f93e8039e6fd54a3c027c6184daf00b745b576a0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "7b22b4cb8822805cef7ba618da6f76e1474d68bd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
        "lessThan": "de62cf265dbe309f34f144a6cdbca9240317727e",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/scsi/qla2xxx/qla_bsg.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.51",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/scsi/qla2xxx/qla_bsg.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89858

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#36309 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-89858 · Revision 1Source updated