Name | CVE-2023-52633 |
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. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
linux (PTS) | bullseye | 5.10.223-1 | vulnerable |
bullseye (security) | 5.10.226-1 | vulnerable | |
bookworm | 6.1.106-3 | fixed | |
bookworm (security) | 6.1.112-1 | fixed | |
trixie | 6.11.5-1 | fixed | |
sid | 6.11.6-1 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
linux | source | bookworm | 6.1.82-1 | |||
linux | source | (unstable) | 6.7.7-1 |
https://git.kernel.org/linus/abe4eaa8618bb36c2b33e9cdde0499296a23448c (6.8-rc1)