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CVE-2026-53314 (GCVE-0-2026-53314)

Vulnerability from cvelistv5 – Published: 2026-06-26 19:41 – Updated: 2026-06-26 19:41
VLAI
Title
padata: Put CPU offline callback in ONLINE section to allow failure
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 894c9ef9780c5cf2f143415e867ee39a33ecb75d , < 65dae8b34f0810f3fa9f77c4c63650cd20820693 (git)
Affected: 894c9ef9780c5cf2f143415e867ee39a33ecb75d , < a6d44f477000c6352de6b05e9e276e62083e5fbf (git)
Affected: 894c9ef9780c5cf2f143415e867ee39a33ecb75d , < 3e6c08dd97dcd22a00aee469e0adfa819071d80e (git)
Affected: 894c9ef9780c5cf2f143415e867ee39a33ecb75d , < 5a9f29a3e076b637d2234093e57989cf755ded5b (git)
Affected: 894c9ef9780c5cf2f143415e867ee39a33ecb75d , < 9afe53f14a2aae8c4beb30e5ea51641a34f1a3d3 (git)
Affected: 894c9ef9780c5cf2f143415e867ee39a33ecb75d , < c8c4a2972f83c8b68ff03b43cecdb898939ff851 (git)
Affected: 2b1207801c393a5e9af2fbac2dd8b0377d8ae63a (git)
Affected: 0685dfa0a2ff7635c0b64f7b7f0fafbf1c3e0c14 (git)
Affected: 3f4d3d010477365ee1aefedc3ad52563740b777e (git)
Affected: 4.19.202 , < 4.20 (semver)
Affected: 5.4.22 , < 5.5 (semver)
Affected: 5.5.6 , < 5.6 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.141 , ≤ 6.6.* (semver)
Unaffected: 6.12.91 , ≤ 6.12.* (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
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      "status": "interim",
      "title": "SUSE CVE CVE-2026-53314",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53314.json",
      "version": "4"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.