CVE-2026-43406: linux kernel from 5.11 (inclusive), before 5.15.203 (exclusive), from 5.16 (inclusive), before 6.1.167 (exclusive)…

Affected technology

linux kernel · from 5.11 (inclusive), before 5.15.203 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.167 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.130 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.78 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.19 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.9 (exclusive)
linux

linux kernel · 7.0 · update rc1
linux

linux kernel · 7.0 · update rc2
linux

linux kernel · 7.0 · update rc3
linux

Linux · cd1a677cad994021b19665ed476aea63f5d54f31 to before 76ccf21a12c5f6d6790bc32c7da82446d877b2f4, cd1a677cad994021b19665ed476aea63f5d54f31 to before 75582aaa580c11aed4c7731cad6b068b700e7efb, cd1a677cad994021b19665ed476aea63f5d54f31 to before 50156622eb0888e62541d715a98584480a1bc7cb, cd1a677cad994021b19665ed476aea63f5d54f31 to before dbd857a9e1e33ea71eaf3e211877027e533770d1, cd1a677cad994021b19665ed476aea63f5d54f31 to before 69fe5af33fa3806f398d21c081d73c66e5523bc2, cd1a677cad994021b19665ed476aea63f5d54f31 to before 035867ae6f18df0aeedb2a57a5b74091bd4e3fe8, cd1a677cad994021b19665ed476aea63f5d54f31 to before 69fb5d91bba44ecf7eb80530b85fa4fb028921d5
Linux

Linux · 5.11
Linux

Component: Not specified by the source
File: net/ceph/messenger_v2.c

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.1/10) rates confidentiality and availability impact as high; integrity impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.