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.
Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-5658-1 | linux security update |
Ubuntu USN |
USN-6766-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6766-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6766-3 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-6795-1 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-6818-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6818-2 | Linux kernel (ARM laptop) vulnerabilities |
Ubuntu USN |
USN-6818-3 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-6818-4 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-6819-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6819-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6819-3 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-6819-4 | Linux kernel (Oracle) vulnerabilities |
Ubuntu USN |
USN-6828-1 | Linux kernel (Intel IoTG) vulnerabilities |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 17 Mar 2025 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Weaknesses | CWE-787 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Wed, 11 Sep 2024 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Projects
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-04T07:40:23.468Z
Reserved: 2024-03-06T09:52:12.092Z
Link: CVE-2023-52633
Updated: 2024-08-02T23:03:21.364Z
Status : Analyzed
Published: 2024-04-02T07:15:41.097
Modified: 2025-03-17T15:17:46.350
Link: CVE-2023-52633
OpenCVE Enrichment
No data.
Debian DSA
Ubuntu USN