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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-52633 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In 'basic' time-travel mode (without =inf-cpu or =ext), we still get timer interrupts. These can happen at arbitrary points in time, i.e. while in timer_read(), which pushes time forward just a little bit. Then, if we happen to get the interrupt after calculating the new time to push to, but before actually finishing that, the interrupt will set the time to a value that's incompatible with the forward, and we'll crash because time goes backwards when we do the forwarding. Fix this by reading the time_travel_time, calculating the adjustment, and doing the adjustment all with interrupts disabled.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab CVE, kernel.org Patch 
https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c CVE, kernel.org Patch 
https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c CVE, kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-52633
NVD Published Date:
04/02/2024
NVD Last Modified:
03/17/2025
Source:
kernel.org