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CVE-2026-43406

libceph: prevent potential out-of-bounds reads in process_message_header()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.15.203, 6.1.167, 6.6.130, 6.12.78, 6.18.19, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From cd1a677cad994021b19665ed476aea63f5d54f31 · fixed in 76ccf21a12c5f6d6790bc32c7da82446d877b2f4; From cd1a677cad994021b19665ed476aea63f5d54f31 · fixed in 75582aaa580c11aed4c7731cad6b068b700e7efb; From cd1a677cad994021b19665ed476aea63f5d54f31 · fixed in 50156622eb0888e62541d715a98584480a1bc7cb; From cd1a677cad994021b19665ed476aea63f5d54f31 · fixed in dbd857a9e1e33ea71eaf3e211877027e533770d1; From cd1a677cad994021b19665ed476aea63f5d54f31 · fixed in 69fe5af33fa3806f398d21c081d73c66e5523bc2; From cd1a677cad994021b19665ed476aea63f5d54f31 · fixed in 035867ae6f18df0aeedb2a57a5b74091bd4e3fe8; From cd1a677cad994021b19665ed476aea63f5d54f31 · fixed in 69fb5d91bba44ecf7eb80530b85fa4fb028921d5

  • Linux Linux

    5.11

  • KernelLinux

    From 5.11.0 · fixed in 5.15.203; From 5.16.0 · fixed in 6.1.167; From 6.2.0 · fixed in 6.6.130; From 6.7.0 · fixed in 6.12.78; From 6.13.0 · fixed in 6.18.19; From 6.19.0 · fixed in 6.19.9

References 7

git.kernel.org