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scsi: qla2xxx: Reject non-SCSI SRB on status IOCB fast path

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Reject non-SCSI SRB on status IOCB fast path qla2x00_status_entry() filters out non-TYPE_SRB entries and the SRB_NVME_CMD, SRB_BIDI_CMD and SRB_TM_CMD types, then falls through to a SCSI fast path that assumes the command is an SRB_SCSI_CMD. The first thing on that path, qla_chk_edif_rx_sa_delete_pending(), and the subsequent handling both evaluate GET_CMD_SP(sp), i.e. sp->u.scmd.cmd. The srb u union overlays the SCSI command pointer with other command layouts (bsg_job, iocb_cmd). If firmware delivers an unexpected STATUS_TYPE IOCB for a non-SCSI handle, sp->u.scmd.cmd can read as a non-NULL garbage pointer, bypassing the NULL checks in qla_chk_edif_rx_sa_delete_pending() and at the cp == NULL test, and leading to a wild pointer dereference. Reject any SRB whose type is not SRB_SCSI_CMD before entering the fast path. The outstanding_cmds slot is left untouched so a genuinely non-SCSI command still completes through its proper handler.

Announced Group revision 1
Original source ↗

CVE-2026-89849

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-2026-89849

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": "dd30706e73b70d67e88fdaca688db7a3374fd5de",
        "lessThan": "9204fb0888374083be74f799049649a17eab4191",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dd30706e73b70d67e88fdaca688db7a3374fd5de",
        "lessThan": "b7418198b45b327194b97f856fe8ea8daa91f3fd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dd30706e73b70d67e88fdaca688db7a3374fd5de",
        "lessThan": "8f0e31e7a41376abe7d6ca7cbee07fcf9de071e6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dd30706e73b70d67e88fdaca688db7a3374fd5de",
        "lessThan": "e38041b47c29316ba79b645e2ae0b713d216b1db",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dd30706e73b70d67e88fdaca688db7a3374fd5de",
        "lessThan": "e93aa3c5125d9a4352ac0fa8ba4a7f8f87881805",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dd30706e73b70d67e88fdaca688db7a3374fd5de",
        "lessThan": "29f1f9ad9e354cd0b6e4f6fc75ba09162d6a04d9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dd30706e73b70d67e88fdaca688db7a3374fd5de",
        "lessThan": "0f41d07d72f2245208c45374ca8d0a1846cad667",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/scsi/qla2xxx/qla_dbg.c",
      "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": "5.15"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.15",
        "versionType": "semver"
      },
      {
        "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_dbg.c",
      "drivers/scsi/qla2xxx/qla_isr.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89849

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#36300 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-89849 · Revision 1Source updated