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FKIE_CVE-2023-53716

Vulnerability from fkie_nvd - Published: 2025-10-22 14:15 - Updated: 2026-06-17 06:45
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fix skb leak in __skb_tstamp_tx() Commit 50749f2dd685 ("tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp.") added a call to skb_orphan_frags_rx() to fix leaks with zerocopy skbs. But it ended up adding a leak of its own. When skb_orphan_frags_rx() fails, the function just returns, leaking the skb it just cloned. Free it before returning. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58766252f6b2c0487cda6976a53d2bb03ae28e2a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/779332447108545ef04682ea29af5f85c0202aee
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/82501f1ead557cbee1c2467654ec109a80334d22
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a02fb71d7192ff1a9a47c9d937624966c6e09af
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a594382ec6d0cc8cff5a8bc7e61b54e3858fb243
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cc18b4685910d5d9de8314bae9c55790701b1811
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e06841a2abf9c82735cee39e88b1d79464088840
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4d928c00254cfc9dd0ee7076f4a59bceec675f4
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/skbuff.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "82501f1ead557cbee1c2467654ec109a80334d22",
              "status": "affected",
              "version": "281072fb2a7294cde7acbf5375b879f40a8001b7",
              "versionType": "git"
            },
            {
              "lessThan": "779332447108545ef04682ea29af5f85c0202aee",
              "status": "affected",
              "version": "1f69c086b20e27763af28145981435423f088268",
              "versionType": "git"
            },
            {
              "lessThan": "58766252f6b2c0487cda6976a53d2bb03ae28e2a",
              "status": "affected",
              "version": "602fa8af44fd55a58f9e94eb673e8adad2c6cc46",
              "versionType": "git"
            },
            {
              "lessThan": "a594382ec6d0cc8cff5a8bc7e61b54e3858fb243",
              "status": "affected",
              "version": "230a5ed7d813fb516de81d23f09d7506753e41e9",
              "versionType": "git"
            },
            {
              "lessThan": "e06841a2abf9c82735cee39e88b1d79464088840",
              "status": "affected",
              "version": "43e4197dd5f6b474a8b16f8b6a42cd45cf4f9d1a",
              "versionType": "git"
            },
            {
              "lessThan": "cc18b4685910d5d9de8314bae9c55790701b1811",
              "status": "affected",
              "version": "cb52e7f24c1d01a536a847dff0d1d95889cc3b5c",
              "versionType": "git"
            },
            {
              "lessThan": "f4d928c00254cfc9dd0ee7076f4a59bceec675f4",
              "status": "affected",
              "version": "426384dd4980040651536fef5feac4dcc4d7ee4e",
              "versionType": "git"
            },
            {
              "lessThan": "8a02fb71d7192ff1a9a47c9d937624966c6e09af",
              "status": "affected",
              "version": "50749f2dd6854a41830996ad302aef2ffaf011d8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "30290f210ba7426ff7592fe2eb4114b1b5bad219",
              "versionType": "git"
            },
            {
              "lessThan": "6.3",
              "status": "affected",
              "version": "6.2.15",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/skbuff.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4.14.316",
              "status": "affected",
              "version": "4.14.315",
              "versionType": "semver"
            },
            {
              "lessThan": "4.19.284",
              "status": "affected",
              "version": "4.19.283",
              "versionType": "semver"
            },
            {
              "lessThan": "5.4.244",
              "status": "affected",
              "version": "5.4.243",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.181",
              "status": "affected",
              "version": "5.10.180",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.114",
              "status": "affected",
              "version": "5.15.111",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.31",
              "status": "affected",
              "version": "6.1.28",
              "versionType": "semver"
            },
            {
              "lessThan": "6.3.5",
              "status": "affected",
              "version": "6.3.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix skb leak in __skb_tstamp_tx()\n\nCommit 50749f2dd685 (\"tcp/udp: Fix memleaks of sk and zerocopy skbs with\nTX timestamp.\") added a call to skb_orphan_frags_rx() to fix leaks with\nzerocopy skbs. But it ended up adding a leak of its own. When\nskb_orphan_frags_rx() fails, the function just returns, leaking the skb\nit just cloned. Free it before returning.\n\nThis bug was discovered and resolved using Coverity Static Analysis\nSecurity Testing (SAST) by Synopsys, Inc."
    }
  ],
  "id": "CVE-2023-53716",
  "lastModified": "2026-06-17T06:45:56.217",
  "metrics": {},
  "published": "2025-10-22T14:15:46.250",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/58766252f6b2c0487cda6976a53d2bb03ae28e2a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/779332447108545ef04682ea29af5f85c0202aee"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/82501f1ead557cbee1c2467654ec109a80334d22"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8a02fb71d7192ff1a9a47c9d937624966c6e09af"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a594382ec6d0cc8cff5a8bc7e61b54e3858fb243"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cc18b4685910d5d9de8314bae9c55790701b1811"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e06841a2abf9c82735cee39e88b1d79464088840"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f4d928c00254cfc9dd0ee7076f4a59bceec675f4"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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