CVE-2026-43240
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
x86/kexec: add a sanity check on previous kernel's ima kexec buffer
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| b69a2afd5afce9bf6d56e349d6ab592c916e20f2 | affected | git | 37f18915a261afe84dab462624ed829cddb77a9b | Unavailable | None listed |
| b69a2afd5afce9bf6d56e349d6ab592c916e20f2 | affected | git | 22e460b6333a5f818b042ac89201f8e735556f4a | Unavailable | None listed |
| b69a2afd5afce9bf6d56e349d6ab592c916e20f2 | affected | git | 7e2476057950c174c7b2c2802246707bbfb497e4 | Unavailable | None listed |
| b69a2afd5afce9bf6d56e349d6ab592c916e20f2 | affected | git | f8f73bf0f8a57ee9b86792456bd42079bc98c6b7 | Unavailable | None listed |
| b69a2afd5afce9bf6d56e349d6ab592c916e20f2 | affected | git | d4a132f121c591b60dbaf57ea91f1faf11631fbc | Unavailable | None listed |
| b69a2afd5afce9bf6d56e349d6ab592c916e20f2 | affected | git | 4d7a8f5f28187e3d2958b2a134473da2665207e7 | Unavailable | None listed |
| b69a2afd5afce9bf6d56e349d6ab592c916e20f2 | affected | git | c5489d04337b47e93c0623e8145fcba3f5739efd | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.0 | Unavailable | None listed |
| 6.1.165 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.128 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.6.143 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.75 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.16 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.6 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |