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wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path mwifiex_pcie_request_irq() registers each MSI-X vector with a per-index dev_id (&card->msix_ctx[i]). On a request_irq() failure the cleanup loop "for (j = 0; j < i; j++)" frees msix_entries[j].vector but passes the failed index's &card->msix_ctx[i] as the dev_id. free_irq() matches on (irq, dev_id), so it fails to find the action registered with &card->msix_ctx[j]: the already-requested IRQ j is not freed (leaked) and free_irq() warns about freeing a non-existent IRQ. Use &card->msix_ctx[j].

Announced Group revision 1
Original source ↗

CVE-2026-98426

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-2026-98426

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": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "11bc2cbb14f450eaa47cce9eb086f948ef8f4bcd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "1a60cb2292194cc9eafae7ca8a8a72d37ae78d97",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "fcac5813f324cd07dfd36b4adf624fc70f7587d6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "2761b21cb896b1da8dd46cee5084c9032b2d7098",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "5fd4cc87e6cc0839aac89c24ebe39ce262fe088f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "0969c9688389f2e0f65b1a924b0dd6625a3bb776",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "03d5e4776e8b71c2468c5c3c48b39202c87a8796",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
        "lessThan": "a3d722190cdef18da4878b5efc27c3c386dda248",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/marvell/mwifiex/pcie.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.6"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.6",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.54",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/marvell/mwifiex/pcie.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98426

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38490 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-98426 · Revision 1Source updated