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FKIE_CVE-2026-72219

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-17 06:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: lockd: Plug nlm_file leak when nlm_do_fopen() fails A client can repeatedly drive nlm_do_fopen() failures by presenting file handles that the underlying export rejects. After kzalloc_obj() succeeds in nlm_lookup_file(), the freshly allocated nlm_file is not yet inserted into nlm_files[]. The nlm_do_fopen() failure path jumps to out_unlock, which releases nlm_file_mutex and returns without freeing the allocation, so each failure leaks one nlm_file. Route the failure through out_free so kfree() runs before the function returns.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1161c4b5bd0048c8148e919f818a33cff3623ef0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1403f1221a35a6caf959bb7bf005741f17263c66
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39f59bf67231ed2eb0cdf6337194360e964b609a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f2dc01b9cb516d4727a3b9263ee58c71ca00ba9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bca74fff138429f3d5802865f38fc883d53a4f1a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7c677feb3aa1f42b1026d75a8ea61338b51e4fb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ddfbd816273b4e9c9b836f5b8773664c6f40f807
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f16a1513452edb532fec81e591c64c320866719c
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/lockd/svcsubs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bca74fff138429f3d5802865f38fc883d53a4f1a",
              "status": "affected",
              "version": "e580323ac0b51ad10ec2e181d1f777479b7983e7",
              "versionType": "git"
            },
            {
              "lessThan": "d7c677feb3aa1f42b1026d75a8ea61338b51e4fb",
              "status": "affected",
              "version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
              "versionType": "git"
            },
            {
              "lessThan": "39f59bf67231ed2eb0cdf6337194360e964b609a",
              "status": "affected",
              "version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
              "versionType": "git"
            },
            {
              "lessThan": "ddfbd816273b4e9c9b836f5b8773664c6f40f807",
              "status": "affected",
              "version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
              "versionType": "git"
            },
            {
              "lessThan": "1403f1221a35a6caf959bb7bf005741f17263c66",
              "status": "affected",
              "version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
              "versionType": "git"
            },
            {
              "lessThan": "1161c4b5bd0048c8148e919f818a33cff3623ef0",
              "status": "affected",
              "version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
              "versionType": "git"
            },
            {
              "lessThan": "3f2dc01b9cb516d4727a3b9263ee58c71ca00ba9",
              "status": "affected",
              "version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
              "versionType": "git"
            },
            {
              "lessThan": "f16a1513452edb532fec81e591c64c320866719c",
              "status": "affected",
              "version": "7f024fcd5c97dc70bb9121c80407cf3cf9be7159",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.261",
              "status": "affected",
              "version": "5.10.220",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/lockd/svcsubs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "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\nlockd: Plug nlm_file leak when nlm_do_fopen() fails\n\nA client can repeatedly drive nlm_do_fopen() failures by presenting\nfile handles that the underlying export rejects. After kzalloc_obj()\nsucceeds in nlm_lookup_file(), the freshly allocated nlm_file is not\nyet inserted into nlm_files[]. The nlm_do_fopen() failure path jumps\nto out_unlock, which releases nlm_file_mutex and returns without\nfreeing the allocation, so each failure leaks one nlm_file.\n\nRoute the failure through out_free so kfree() runs before the\nfunction returns."
    }
  ],
  "id": "CVE-2026-72219",
  "lastModified": "2026-08-17T06:18:22.927",
  "metrics": {},
  "published": "2026-08-15T06:21:40.747",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1161c4b5bd0048c8148e919f818a33cff3623ef0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1403f1221a35a6caf959bb7bf005741f17263c66"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/39f59bf67231ed2eb0cdf6337194360e964b609a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3f2dc01b9cb516d4727a3b9263ee58c71ca00ba9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bca74fff138429f3d5802865f38fc883d53a4f1a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d7c677feb3aa1f42b1026d75a8ea61338b51e4fb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ddfbd816273b4e9c9b836f5b8773664c6f40f807"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f16a1513452edb532fec81e591c64c320866719c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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