CVE-2026-53314 (GCVE-0-2026-53314)
Vulnerability from cvelistv5
Published
2026-06-26 19:41
Modified
2026-06-26 19:41
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: padata: Put CPU offline callback in ONLINE section to allow failure syzbot reported the following warning: DEAD callback error for CPU1 WARNING: kernel/cpu.c:1463 at _cpu_down+0x759/0x1020 kernel/cpu.c:1463, CPU#0: syz.0.1960/14614 at commit 4ae12d8bd9a8 ("Merge tag 'kbuild-fixes-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux") which tglx traced to padata_cpu_dead() given it's the only sub-CPUHP_TEARDOWN_CPU callback that returns an error. Failure isn't allowed in hotplug states before CPUHP_TEARDOWN_CPU so move the CPU offline callback to the ONLINE section where failure is possible.
References
Impacted products
Vendor Product Version
Linux Linux Version: 894c9ef9780c5cf2f143415e867ee39a33ecb75d
Version: 894c9ef9780c5cf2f143415e867ee39a33ecb75d
Version: 894c9ef9780c5cf2f143415e867ee39a33ecb75d
Version: 894c9ef9780c5cf2f143415e867ee39a33ecb75d
Version: 894c9ef9780c5cf2f143415e867ee39a33ecb75d
Version: 894c9ef9780c5cf2f143415e867ee39a33ecb75d
Version: 2b1207801c393a5e9af2fbac2dd8b0377d8ae63a
Version: 0685dfa0a2ff7635c0b64f7b7f0fafbf1c3e0c14
Version: 3f4d3d010477365ee1aefedc3ad52563740b777e
Version: 4.19.202   ≤
Version: 5.4.22   ≤
Version: 5.5.6   ≤
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{
  "containers": {
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          ],
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      "cpeApplicability": [
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npadata: Put CPU offline callback in ONLINE section to allow failure\n\nsyzbot reported the following warning:\n\n    DEAD callback error for CPU1\n    WARNING: kernel/cpu.c:1463 at _cpu_down+0x759/0x1020 kernel/cpu.c:1463, CPU#0: syz.0.1960/14614\n\nat commit 4ae12d8bd9a8 (\"Merge tag \u0027kbuild-fixes-7.0-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux\")\nwhich tglx traced to padata_cpu_dead() given it\u0027s the only\nsub-CPUHP_TEARDOWN_CPU callback that returns an error.\n\nFailure isn\u0027t allowed in hotplug states before CPUHP_TEARDOWN_CPU\nso move the CPU offline callback to the ONLINE section where failure is\npossible."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T19:41:07.447Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/65dae8b34f0810f3fa9f77c4c63650cd20820693"
        },
        {
          "url": "https://git.kernel.org/stable/c/a6d44f477000c6352de6b05e9e276e62083e5fbf"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e6c08dd97dcd22a00aee469e0adfa819071d80e"
        },
        {
          "url": "https://git.kernel.org/stable/c/5a9f29a3e076b637d2234093e57989cf755ded5b"
        },
        {
          "url": "https://git.kernel.org/stable/c/9afe53f14a2aae8c4beb30e5ea51641a34f1a3d3"
        },
        {
          "url": "https://git.kernel.org/stable/c/c8c4a2972f83c8b68ff03b43cecdb898939ff851"
        }
      ],
      "title": "padata: Put CPU offline callback in ONLINE section to allow failure",
      "x_generator": {
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53314",
    "datePublished": "2026-06-26T19:41:07.447Z",
    "dateReserved": "2026-06-09T07:44:35.397Z",
    "dateUpdated": "2026-06-26T19:41:07.447Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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