🛡️ CVE-2023-52633
🟡 CVSS 5.0 — Medium ✅ No Known Exploit CWE-787 NVD
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.0
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
CWE CWE-787
Public Exploit ✅ No
Source NVD
Published 2024-04-02
Updated 2026-06-08
Modified 2025-03-17

Affected Packages

Software From version Fixed in
linux-kernel 6.7 6.7.4

References

Similar Threats

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