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CVE-2026-64073 irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT

🗓️ 19 Jul 2026 15:39:48Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

Fix use-after-free in irq_work_single on PREEMPT_RT by guarding with RCU and adding synchronize_rcu.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-64073
19 Jul 202615:39
cve
EUVD
EUVD-2026-45646
19 Jul 202615:39
euvd
NVD
CVE-2026-64073
19 Jul 202616:17
nvd
OSV
CVE-2026-64073 irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT
19 Jul 202615:39
osv
OSV
DEBIAN-CVE-2026-64073
19 Jul 202616:17
osv
OSV
UBUNTU-CVE-2026-64073
20 Jul 202600:00
osv
Positive Technologies
PT-2026-61390
19 Jul 202600:00
ptsecurity
RedhatCVE
CVE-2026-64073
20 Jul 202617:11
redhatcve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/irq_work.c"
    ],
    "versions": [
      {
        "version": "810979682ccc98dbd83f341c18a2e556c30a7164",
        "lessThan": "2dc79362302922cb18f35e262712b5e58de65442",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "810979682ccc98dbd83f341c18a2e556c30a7164",
        "lessThan": "eef4f71b46a9929ac33e968538c9dd5d96a02460",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "810979682ccc98dbd83f341c18a2e556c30a7164",
        "lessThan": "684a78183c54c23e70d1cba320f7fc184604210b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "810979682ccc98dbd83f341c18a2e556c30a7164",
        "lessThan": "18c0456ea2615b1a743a6db739c74411c3b42bc6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "810979682ccc98dbd83f341c18a2e556c30a7164",
        "lessThan": "81b582784518196eff1050212a046bc29d3a05dd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "810979682ccc98dbd83f341c18a2e556c30a7164",
        "lessThan": "91840be8f710370607f949a627e070896faeddb8",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/irq_work.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.142",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.92",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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20 Jul 2026 13:43Current
CVSS 3.17.8
EPSS0.00186
29