Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.11, < 5.15.203 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/035867ae6f18df0aeedb2a57a5b74091bd4e3fe8Patch
- https://git.kernel.org/stable/c/50156622eb0888e62541d715a98584480a1bc7cbPatch
- https://git.kernel.org/stable/c/69fb5d91bba44ecf7eb80530b85fa4fb028921d5Patch
- https://git.kernel.org/stable/c/69fe5af33fa3806f398d21c081d73c66e5523bc2Patch
- https://git.kernel.org/stable/c/75582aaa580c11aed4c7731cad6b068b700e7efbPatch
- https://git.kernel.org/stable/c/76ccf21a12c5f6d6790bc32c7da82446d877b2f4Patch
- https://git.kernel.org/stable/c/dbd857a9e1e33ea71eaf3e211877027e533770d1Patch
FAQ
What is CVE-2026-43406?
CVE-2026-43406 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 wa...
How severe is CVE-2026-43406?
CVE-2026-43406 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-43406?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.