CVE-2023-52633
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
um: time-travel: fix time corruption
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 065038706f77a56754e8f0c2556dab7e22dfe577 | affected | git | 0c7478a2da3f5fe106b4658338873d50c86ac7ab | Unavailable | None listed |
| 065038706f77a56754e8f0c2556dab7e22dfe577 | affected | git | 4f7dad73df4cdb2b7042103d3922745d040ad025 | Unavailable | None listed |
| 065038706f77a56754e8f0c2556dab7e22dfe577 | affected | git | de3e9d8e8d1ae0a4d301109d1ec140796901306c | Unavailable | None listed |
| 065038706f77a56754e8f0c2556dab7e22dfe577 | affected | git | b427f55e9d4185f6f17cc1e3296eb8d0c4425283 | Unavailable | None listed |
| 065038706f77a56754e8f0c2556dab7e22dfe577 | affected | git | abe4eaa8618bb36c2b33e9cdde0499296a23448c | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.3 | Unavailable | None listed |
| 5.15.149 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.77 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.16 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7.4 | unaffected | semver | Unavailable | 6.7.* | None listed |
| 6.8 | unaffected | original_commit_for_fix | Unavailable | * | None listed |