CVE-2026-23298
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-03-25
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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.
Weakness Classification (1)
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < ca07d3c6eef14d34e6fdeefe55058db045be29dc |
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < e7bb6e0606b5f233531aaaad9542d69fbb792115 |
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < ab6f075492d37368b4c7b0df7f7fdc2b666887fc |
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < 13b646eec3ba1131180803f5aaf1fee23540ad8f |
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < bd85f21a6219aeae4389d700c54f1799f4b814e0 |
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588 |
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < c7bc62be6c1a60bb21301692009590b1ffda91d9 |
| Linux | Linux | 9f2d3eae88d26c29d96e42983b755940d9169cd9 < 1e446fd0582ad8be9f6dafb115fc2e7245f9bea7 |
| Linux | Linux | 4.19 |
| linux | linux_kernel | 4.19 – 5.10.253 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |