Fixed
Created: Jan 23, 2024
Updated: Feb 1, 2024
Resolved Date: Jan 26, 2024
Found In Version: 10.19.45.1
Fix Version: 10.19.45.29
Severity: Standard
Applicable for: Wind River Linux LTS 19
Component/s: Kernel
Transmit requests in Xen's virtual network protocol can consist of
multiple parts. While not really useful, except for the initial part
any of them may be of zero length, i.e. carry no data at all. Besides a
certain initial portion of the to be transferred data, these parts are
directly translated into what Linux calls SKB fragments. Such converted
request parts can, when for a particular SKB they are all of length
zero, lead to a de-reference of NULL in core networking code.
https://nvd.nist.gov/vuln/detail/CVE-2023-46838
