FKIE_CVE-2026-72023

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-23 13:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix SQB pointer leak on init failure otx2_init_hw_resources() initializes SQ aura and pool resources before several later setup steps. On failure, err_free_sq_ptrs only frees SQB pages, leaving the per-SQ sqb_ptrs arrays behind. Use otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs even when sq->sqe has not been allocated yet. 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 v7.1.1. An x86_64 allyesconfig build showed no new warnings. As we do not have an OcteonTX2 PF device and the corresponding AF mailbox setup to test with, no runtime testing was able to be performed.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fca9c22633169a6c5d429a32e439121b6419e2be",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            },
            {
              "lessThan": "42c2836f10ac0427dac9e9a923d6ee2189dec544",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            },
            {
              "lessThan": "2cac2eac935ed7e0a9203204e036a1f6090ebc3d",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            },
            {
              "lessThan": "148d7ec0a3a98839c320e6cdd112e2e88bfb091b",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            },
            {
              "lessThan": "5e023fe2569e630ba23b5558ebe4bf4837af4d16",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            },
            {
              "lessThan": "5df30f05db96552903680a17f858d250dfd9e86e",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            },
            {
              "lessThan": "23d917acd9c9a9fd999688ec3fdde7aa58ab8a14",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            },
            {
              "lessThan": "62e7df6d042aeebd5efb581074e28865c04477be",
              "status": "affected",
              "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.266",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.217",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.184",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix SQB pointer leak on init failure\n\notx2_init_hw_resources() initializes SQ aura and pool resources before\nseveral later setup steps. On failure, err_free_sq_ptrs only frees SQB\npages, leaving the per-SQ sqb_ptrs arrays behind.\n\nUse otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs\neven when sq-\u003esqe has not been allocated yet.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1.1.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have an\nOcteonTX2 PF device and the corresponding AF mailbox setup to test with,\nno runtime testing was able to be performed."
    }
  ],
  "id": "CVE-2026-72023",
  "lastModified": "2026-08-23T13:16:37.467",
  "metrics": {},
  "published": "2026-08-15T06:21:01.323",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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