In the Linux kernel, the following vulnerability has been resolved:
x86/kexec: add a sanity check on previous kernel's ima kexec buffer
When the second-stage kernel is booted via kexec with a limiting command
line such as "mem=<size>", the physical range that contains the carried
over IMA measurement list may fall outside the truncated RAM leading to a
kernel panic.
BUG: unable to handle page fault for address: ffff97793ff47000
RIP: ima_restore_measurement_list+0xdc/0x45a
#PF: error_code(0x0000) – not-present page
Other architectures already validate the range with page_is_ram(), as done
in commit cbf9c4b9617b ("of: check previous kernel's ima-kexec-buffer
against memory bounds") do a similar check on x86.
Without carrying the measurement list across kexec, the attestation
would fail.
References
Configurations
Configuration 1 (hide)
|
History
11 May 2026, 14:27
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/22e460b6333a5f818b042ac89201f8e735556f4a - Patch | |
| References | () https://git.kernel.org/stable/c/37f18915a261afe84dab462624ed829cddb77a9b - Patch | |
| References | () https://git.kernel.org/stable/c/4d7a8f5f28187e3d2958b2a134473da2665207e7 - Patch | |
| References | () https://git.kernel.org/stable/c/c5489d04337b47e93c0623e8145fcba3f5739efd - Patch | |
| References | () https://git.kernel.org/stable/c/d4a132f121c591b60dbaf57ea91f1faf11631fbc - Patch | |
| References | () https://git.kernel.org/stable/c/f8f73bf0f8a57ee9b86792456bd42079bc98c6b7 - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | NVD-CWE-noinfo | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
06 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 12:16
Updated : 2026-05-11 14:27
NVD link : CVE-2026-43240
Mitre link : CVE-2026-43240
CVE.ORG link : CVE-2026-43240
JSON object : View
Products Affected
linux
- linux_kernel
CWE