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CVE-2023-54112 kcm: Fix memory leak in error path of kcm_sendmsg()

🗓️ 24 Dec 2025 13:06:34Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 22 Views

Fix memory leak in kcm_sendmsg error path by updating last_skb to last allocated skb.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/kcm/kcmsock.c"
    ],
    "versions": [
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "8dc7eb757b1652b82725f32e0c89a1e9f6c0e13b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "5e5554389397e98fafb9efe395d8b4830dd5f042",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "479c71cda14b3c3a6515773faa39055333eaa2b7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "33db24ad811b3576a0c2f8862506763f2be925b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "97275339c34cfbccd65e87bc38fd910ae66c48ba",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "16989de75497574b5fafd174c0c233d5a86858b7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "af8085e0fc3207ecbf8b9e7a635c790e36d058c6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab7ac4eb9832e32a09f4e8042705484d2fb0aad3",
        "lessThan": "c821a88bd720b0046433173185fd841a100d44ad",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/kcm/kcmsock.c"
    ],
    "versions": [
      {
        "version": "4.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.326",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.295",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.257",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.195",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.132",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.54",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5.4",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 19:55Current
EPSS0.00177
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