by Kastro CVE-2026-43406
Linux Linux — libceph: prevent potential out-of-bounds reads in process_message_header()
Description · from the CVE record
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.
Affected
ProductAffectedFixed inSource
Linuxcd1a677cad994021b19665ed476aea63f5d54f31 – < 76ccf21a12c5f6d6790bc32c7da82446d877b2f476ccf21a12c5f6d6790bc32c7da82446d877b2f4CNA
Linuxcd1a677cad994021b19665ed476aea63f5d54f31 – < 75582aaa580c11aed4c7731cad6b068b700e7efb75582aaa580c11aed4c7731cad6b068b700e7efbCNA
Linuxcd1a677cad994021b19665ed476aea63f5d54f31 – < 50156622eb0888e62541d715a98584480a1bc7cb50156622eb0888e62541d715a98584480a1bc7cbCNA
Linuxcd1a677cad994021b19665ed476aea63f5d54f31 – < dbd857a9e1e33ea71eaf3e211877027e533770d1dbd857a9e1e33ea71eaf3e211877027e533770d1CNA
Linuxcd1a677cad994021b19665ed476aea63f5d54f31 – < 69fe5af33fa3806f398d21c081d73c66e5523bc269fe5af33fa3806f398d21c081d73c66e5523bc2CNA
Linuxcd1a677cad994021b19665ed476aea63f5d54f31 – < 035867ae6f18df0aeedb2a57a5b74091bd4e3fe8035867ae6f18df0aeedb2a57a5b74091bd4e3fe8CNA
Linuxcd1a677cad994021b19665ed476aea63f5d54f31 – < 69fb5d91bba44ecf7eb80530b85fa4fb028921d569fb5d91bba44ecf7eb80530b85fa4fb028921d5CNA
Linux5.115.15.203CNA
Scores by source
Linux (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial