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scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read In qla2x00_status_entry(), the FWI2 status path advances sense_data and shrinks par_sense_len by rsp_info_len: if (IS_FWI2_CAPABLE(ha)) { sense_data += rsp_info_len; par_sense_len -= rsp_info_len; } rsp_info_len is a 32-bit value taken directly from the target's FCP response (sf.rsp_data_len), while par_sense_len is the IOCB data area size (28 bytes for 24xx, 60 bytes for 29xx). A hostile or buggy target reporting an rsp_info_len larger than par_sense_len makes the unsigned subtraction underflow to a huge value and advances sense_data out of bounds. The underflowed par_sense_len then defeats the cap in qla2x00_handle_sense(): if (sense_len > par_sense_len) sense_len = par_sense_len; memcpy(cp->sense_buffer, sense_data, sense_len); so the memcpy reads up to SCSI_SENSE_BUFFERSIZE bytes from the out-of-bounds sense_data pointer, leaking adjacent response-ring/heap memory into the command's sense buffer. Clamp rsp_info_len to par_sense_len before the subtraction so par_sense_len can never underflow and sense_data stays within the IOCB data area. The fix sits before the comp_status switch, covering both qla2x00_handle_sense() call sites.

Announced Source revision 1
Original source ↗

CVE-2026-89846

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-2026-89846

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": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "125b12861c726e58448bb95d55b04851fb131d1f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "e57ace988bda5693f7b3645f652ea4b4220870ee",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "6b08c0cb110a1fba92f99d655020198489699815",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "be75ab791c9b3baca66c70ce03443afebc83acda",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "ebc41dfc59d190956e0113e8bd90c28f6f21e8b9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "d7f7746ff031ae45724881261804f4bf5317c985",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "f6e8977bce887481b2b2b0e2e14a791270741cfb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5544213be7b4fb693730106a6d70a8cc1aa7cdf6",
        "lessThan": "ca6d880d6c70cb7946e7b3e05d7285f271b6d99e",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/scsi/qla2xxx/qla_isr.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.36"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.36",
        "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_isr.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89846

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#36297 · Revision 1
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Publisher date
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