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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
9f2d3eae88d26c29d96e42983b755940d9169cd9 to < ca07d3c6eef14d34e6fdeefe55058db045be29dcaffected9f2d3eae88d26c29d96e42983b755940d9169cd9 to < e7bb6e0606b5f233531aaaad9542d69fbb792115affected9f2d3eae88d26c29d96e42983b755940d9169cd9 to < ab6f075492d37368b4c7b0df7f7fdc2b666887fcaffected9f2d3eae88d26c29d96e42983b755940d9169cd9 to < 13b646eec3ba1131180803f5aaf1fee23540ad8faffected9f2d3eae88d26c29d96e42983b755940d9169cd9 to < bd85f21a6219aeae4389d700c54f1799f4b814e0affected9f2d3eae88d26c29d96e42983b755940d9169cd9 to < aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588affected9f2d3eae88d26c29d96e42983b755940d9169cd9 to < c7bc62be6c1a60bb21301692009590b1ffda91d9affected9f2d3eae88d26c29d96e42983b755940d9169cd9 to < 1e446fd0582ad8be9f6dafb115fc2e7245f9bea7affected
Linux Linux
Default version status: affected
4.19affected0 to < 4.19unaffected5.10.253 to ≤ 5.10.*unaffected5.15.203 to ≤ 5.15.*unaffected6.1.167 to ≤ 6.1.*unaffected6.6.130 to ≤ 6.6.*unaffected6.12.77 to ≤ 6.12.*unaffected6.18.17 to ≤ 6.18.*unaffected6.19.7 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/ca07d3c6eef14d34e6fdeefe55058db045be29dc ↗
- https://git.kernel.org/stable/c/e7bb6e0606b5f233531aaaad9542d69fbb792115 ↗
- https://git.kernel.org/stable/c/ab6f075492d37368b4c7b0df7f7fdc2b666887fc ↗
- https://git.kernel.org/stable/c/13b646eec3ba1131180803f5aaf1fee23540ad8f ↗
- https://git.kernel.org/stable/c/bd85f21a6219aeae4389d700c54f1799f4b814e0 ↗
- https://git.kernel.org/stable/c/aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588 ↗
- https://git.kernel.org/stable/c/c7bc62be6c1a60bb21301692009590b1ffda91d9 ↗
- https://git.kernel.org/stable/c/1e446fd0582ad8be9f6dafb115fc2e7245f9bea7 ↗