Vulnerability CVE-2022-48938
Published: 2024-08-22

Description:
In the Linux kernel, the following vulnerability has been resolved:

CDC-NCM: avoid overflow in sanity checking

A broken device may give an extreme offset like 0xFFF0
and a reasonable length for a fragment. In the sanity
check as formulated now, this will create an integer
overflow, defeating the sanity check. Both offset
and offset + len need to be checked in such a manner
that no overflow can occur.
And those quantities should be unsigned.

 References:
https://git.kernel.org/stable/c/69560efa001397ebb8dc1c3e6a3ce00302bb9f7f
https://git.kernel.org/stable/c/49909c9f8458cacb5b241106cba65aba5a6d8f4c
https://git.kernel.org/stable/c/7b737e47b87589031f0d4657f6d7b0b770474925
https://git.kernel.org/stable/c/8d2b1a1ec9f559d30b724877da4ce592edc41fdc
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