CVE-2026-43406

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds reads in process_message_header() If the message frame is (maliciously) corrupted in a way that the length of the control segment ends up being less than the size of the message header or a different frame is made to look like a message frame, out-of-bounds reads may ensue in process_message_header(). Perform an explicit bounds check before decoding the message header.

References

• https://git.kernel.org/stable/c/035867ae6f18df0aeedb2a57a5b74091bd4e3fe8
• https://git.kernel.org/stable/c/50156622eb0888e62541d715a98584480a1bc7cb
• https://git.kernel.org/stable/c/69fb5d91bba44ecf7eb80530b85fa4fb028921d5
• https://git.kernel.org/stable/c/69fe5af33fa3806f398d21c081d73c66e5523bc2
• https://git.kernel.org/stable/c/75582aaa580c11aed4c7731cad6b068b700e7efb
• https://git.kernel.org/stable/c/76ccf21a12c5f6d6790bc32c7da82446d877b2f4
• https://git.kernel.org/stable/c/dbd857a9e1e33ea71eaf3e211877027e533770d1