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qed: fix double free in qed_cxt_tables_alloc()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: qed: fix double free in qed_cxt_tables_alloc() If one of the later PF or VF CID bitmap allocations fails, qed_cid_map_alloc() jumps to cid_map_fail and frees the previously allocated CID bitmaps before returning an error. qed_cxt_tables_alloc() then calls qed_cxt_mngr_free(), which invokes qed_cid_map_free() again. Fix this by setting each CID bitmap pointer to NULL after bitmap_free() to avoid double free. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc3. Runtime reproduction was not attempted because exercising the failing allocation path requires device-specific setup.

Announced Source revision 1
Original source ↗

CVE-2026-64118

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-2026-64118

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": "fe56b9e6a8d957d6a20729d626027f800c17a2da",
        "lessThan": "9fe030719bd083b766602692ee96c8c985798e3c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe56b9e6a8d957d6a20729d626027f800c17a2da",
        "lessThan": "06fa8e69019fd3c41a7b0ea8c5f509c3a33dc227",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe56b9e6a8d957d6a20729d626027f800c17a2da",
        "lessThan": "8cf5e4d2ca6b101d163c7423a426fb0aec34f7bb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe56b9e6a8d957d6a20729d626027f800c17a2da",
        "lessThan": "3904b993cc17ec5d7c5d3b57dbd0b775dafb9684",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe56b9e6a8d957d6a20729d626027f800c17a2da",
        "lessThan": "bdf678a273cadbccc347f331ae2e93ff4d14834c",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "0e47fc1c9181ae029e0e35a865cbf2adcbae626c",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "a04c207f0801abdd23a169b5f902a9845059a65a",
        "versionType": "git"
      },
      {
        "status": "affected",
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        "lessThan": "2bccfb8476ca5f3548afbd623dc7a6980d4e77de",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/qlogic/qed/qed_cxt.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.4"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.4",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.259",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.210",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.175",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.142",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.92",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.34",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.11",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/qlogic/qed/qed_cxt.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-64118

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#40959 · Revision 1
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Publisher date
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