Tracker / CVE-2026-23298
CVE-2026-23298
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: can: ucan: Fix infinite loop from zero-length messages If a broken ucan device gets a message with the message length field set to 0, then the driver will loop for forever in ucan_read_bulk_callback(), hanging the system. If the length is 0, just skip the message and go on to the next one. This has been fixed in the kvaser_usb driver in the past in commit 0c73772cd2b8 ("can: kvaser_usb: leaf: Fix potential infinite loop in command parsers"), so there must be some broken devices out there like this somewhere.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.19 → 5.10.253 |
| linux | linux_kernel · 5.11 → 5.15.203 |
| linux | linux_kernel · 5.16 → 6.1.167 |
| linux | linux_kernel · 6.13 → 6.18.17 |
| linux | linux_kernel · 6.19 → 6.19.7 |
| linux | linux_kernel · 6.2 → 6.6.130 |
| linux | linux_kernel · 6.7 → 6.12.77 |
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.