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.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade perf6.18Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-tools-debuginfoUpgrade bpftool6.18Upgrade python3-perf6.18-debuginfoUpgrade perf6.18-debuginfoUpgrade kernel6.18-libbpf-debuginfoUpgrade python3-perf6.18Upgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-libbpfUpgrade kernel6.18-headersUpgrade kernel6.18-develUpgrade kernel-livepatch-6.18.16-18.222Upgrade kernel6.18-toolsUpgrade kernel6.18-debuginfoUpgrade kernel6.18Upgrade kernel6.18-libbpf-staticUpgrade kernel6.18-libbpf-develUpgrade kernel6.18-modules-extraUpgrade kernel6.18-tools-devel | May 19, 2026 | May 6, 2026 |
| Debian | — | Upgrade linux | May 7, 2026 | May 7, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | May 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 6, 2026 | May 6, 2026 |
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