Tracker / CVE-2023-52633
CVE-2023-52633
Medium 5.0
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.
Affected products and versions
| linux | linux_kernel · … → 5.15.149 |
|---|---|
| linux | linux_kernel · 5.16 → 6.1.77 |
| linux | linux_kernel · 6.2 → 6.6.16 |
| linux | linux_kernel · 6.7 → 6.7.4 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.