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CVE-2026-64375 proc: protect ptrace_may_access() with exec_update_lock (FD links)

🗓️ 25 Jul 2026 08:50:26Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Linux kernel fixes ptrace access race for FD links by using exec_update_lock and call_proc_get_link.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/proc/base.c",
      "fs/proc/fd.c",
      "fs/proc/internal.h"
    ],
    "versions": [
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "6253dfee5afba536bb54fc6fe6c091c3758fafe1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "65bf0d2b6e914f1448d6a2fde193dcf60936a651",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "de497d7aa2fae453a7e7c8f7d3e8682e565e3aaf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "138c692d2b2d63d26f2eb957d0e4fcc5d61f9ff2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "83b17872e3166c295c599279fc9562ac3840c638",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "497c6bae5167428596575f20af6613ff5671f383",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "dfd1894cb64cbd8758b461ed713800fe73db4f82",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "778c1144771f0064b6f51bee865cceb0d996f2f9",
        "lessThan": "6255da28d4bb5349fe18e84cb043ccd394eba75d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/proc/base.c",
      "fs/proc/fd.c",
      "fs/proc/internal.h"
    ],
    "versions": [
      {
        "version": "2.6.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.261",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.97",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.40",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 12:41Current
CVSS 3.17.8
EPSS0.00129
34