CVE-2022-48938

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.

Score

CVSS 3.1 5.5 Medium

Status

Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2024-08-22

Last modified

2026-05-23

Weaknesses

CWE-190

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/49909c9f8458cacb5b241106cba65aba5a6d8f4c
• https://git.kernel.org/stable/c/69560efa001397ebb8dc1c3e6a3ce00302bb9f7f
• https://git.kernel.org/stable/c/7b737e47b87589031f0d4657f6d7b0b770474925
• https://git.kernel.org/stable/c/8d2b1a1ec9f559d30b724877da4ce592edc41fdc
• https://git.kernel.org/stable/c/9957fbf34f52a4d8945d1bf39aae400ef9a11246
• https://git.kernel.org/stable/c/a612395c7631918e0e10ea48b9ce5ab4340f26a6