| 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) | jessie, jessie (lts) | 3.16.84-1 | vulnerable |
| stretch (security) | 4.9.320-2 | vulnerable | |
| stretch (lts), stretch | 4.9.320-3 | vulnerable | |
| buster | 4.19.249-2 | vulnerable | |
| buster (security) | 4.19.304-1 | vulnerable | |
| bullseye | 5.10.209-2 | vulnerable | |
| bullseye (security) | 5.10.205-2 | vulnerable | |
| bookworm | 6.1.76-1 | vulnerable | |
| bookworm (security) | 6.1.85-1 | fixed | |
| trixie | 6.6.15-2 | vulnerable | |
| sid | 6.7.12-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | jessie | (unfixed) | end-of-life | ||
| linux | source | stretch | (unfixed) | end-of-life | ||
| linux | source | bookworm | 6.1.82-1 | |||
| linux | source | (unstable) | 6.7.7-1 |
https://git.kernel.org/linus/abe4eaa8618bb36c2b33e9cdde0499296a23448c (6.8-rc1)