CVE-2023-53373 Details
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.
A use-after-free vulnerability has been addressed in the Linux kernel's crypto seqiv component. This issue arises because seqiv only properly handles the EINPROGRESS return value, freeing associated data in all other cases. However, when the caller specifies MAY_BACKLOG, seqiv must also anticipate EBUSY and manage it similarly. Failing to do so can lead to backlogged requests triggering the use-after-free condition.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jan 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/1effbddaff60eeef8017c6dea1ee0ed970164d14 | kernel.org | Patch |
| https://git.kernel.org/stable/c/32e62025e5e52fbe4812ef044759de7010b15dbc | kernel.org | Patch |
| https://git.kernel.org/stable/c/36ec108b7bd7e280edb22de028467bd09d644620 | kernel.org | Patch |
| https://git.kernel.org/stable/c/4d497e8b200a175094e0ac252ed878add39b8771 | kernel.org | Patch |
| https://git.kernel.org/stable/c/63551e4b7cbcd9914258827699eb2cb6ed6e4a16 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9477db935eb690f697d9bcc4f608927841bc8b36 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ae849d2f48019ff9c104e32bf588ccbfb200e971 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cc4d0d4251748a8a68026938f4055d2ac47c5719 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
| CWE-416 | Use After Free | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.25, < 4.14.308 >= 4.15, < 4.19.276 >= 4.20, < 5.4.235 >= 5.5, < 5.10.173 >= 5.11, < 5.15.99 >= 5.16, < 6.1.16 >= 6.2, < 6.2.3 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jan 14, 2026 | CVE Modified | CISA-ADP |
| Dec 12, 2025 | Initial Analysis | [email protected] |
| Sep 18, 2025 | New CVE Received | kernel.org |