CVE-2026-43406
libceph: prevent potential out-of-bounds reads in process_message_header()
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 8, 2026 |
| Last Updated | May 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
cd1a677cad994021b19665ed476aea63f5d54f31 < 76ccf21a12c5f6d6790bc32c7da82446d877b2f4 cd1a677cad994021b19665ed476aea63f5d54f31 < 75582aaa580c11aed4c7731cad6b068b700e7efb cd1a677cad994021b19665ed476aea63f5d54f31 < 50156622eb0888e62541d715a98584480a1bc7cb cd1a677cad994021b19665ed476aea63f5d54f31 < dbd857a9e1e33ea71eaf3e211877027e533770d1 cd1a677cad994021b19665ed476aea63f5d54f31 < 69fe5af33fa3806f398d21c081d73c66e5523bc2 cd1a677cad994021b19665ed476aea63f5d54f31 < 035867ae6f18df0aeedb2a57a5b74091bd4e3fe8 cd1a677cad994021b19665ed476aea63f5d54f31 < 69fb5d91bba44ecf7eb80530b85fa4fb028921d5
Linux / Linux
5.11
References
git.kernel.org: https://git.kernel.org/stable/c/76ccf21a12c5f6d6790bc32c7da82446d877b2f4 git.kernel.org: https://git.kernel.org/stable/c/75582aaa580c11aed4c7731cad6b068b700e7efb git.kernel.org: https://git.kernel.org/stable/c/50156622eb0888e62541d715a98584480a1bc7cb git.kernel.org: https://git.kernel.org/stable/c/dbd857a9e1e33ea71eaf3e211877027e533770d1 git.kernel.org: https://git.kernel.org/stable/c/69fe5af33fa3806f398d21c081d73c66e5523bc2 git.kernel.org: https://git.kernel.org/stable/c/035867ae6f18df0aeedb2a57a5b74091bd4e3fe8 git.kernel.org: https://git.kernel.org/stable/c/69fb5d91bba44ecf7eb80530b85fa4fb028921d5