In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/1effbddaff60eeef8017c6dea1ee0ed970164d14 cve-icon cve-icon
https://git.kernel.org/stable/c/32e62025e5e52fbe4812ef044759de7010b15dbc cve-icon cve-icon
https://git.kernel.org/stable/c/36ec108b7bd7e280edb22de028467bd09d644620 cve-icon cve-icon
https://git.kernel.org/stable/c/4d497e8b200a175094e0ac252ed878add39b8771 cve-icon cve-icon
https://git.kernel.org/stable/c/63551e4b7cbcd9914258827699eb2cb6ed6e4a16 cve-icon cve-icon
https://git.kernel.org/stable/c/9477db935eb690f697d9bcc4f608927841bc8b36 cve-icon cve-icon
https://git.kernel.org/stable/c/ae849d2f48019ff9c104e32bf588ccbfb200e971 cve-icon cve-icon
https://git.kernel.org/stable/c/cc4d0d4251748a8a68026938f4055d2ac47c5719 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091855-CVE-2023-53373-087e@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53373 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53373 cve-icon
History

Fri, 19 Sep 2025 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Fri, 19 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Thu, 18 Sep 2025 13:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.
Title crypto: seqiv - Handle EBUSY correctly
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-09-18T13:33:20.264Z

Updated: 2025-09-18T13:33:20.264Z

Reserved: 2025-09-17T14:54:09.734Z

Link: CVE-2023-53373

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-09-18T14:15:39.880

Modified: 2025-09-18T14:15:39.880

Link: CVE-2023-53373

cve-icon Redhat

Severity : Important

Publid Date: 2025-09-18T00:00:00Z

Links: CVE-2023-53373 - Bugzilla