261 lines
12 KiB
JSON
261 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-43240",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-01T14:12:55.995Z",
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"datePublished": "2026-05-06T11:28:34.269Z",
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"dateUpdated": "2026-11-06T15:32:37.007Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-06-19T11:58:23.596Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/kexec: add a sanity check on previous kernel's ima kexec buffer\n\nWhen the second-stage kernel is booted via kexec with a limiting command\nline such as \"mem=<size>\", the physical range that contains the carried\nover IMA measurement list may fall outside the truncated RAM leading to a\nkernel panic.\n\n BUG: unable to handle page fault for address: ffff97793ff47000\n RIP: ima_restore_measurement_list+0xdc/0x45a\n #PF: error_code(0x0000) – not-present page\n\nOther architectures already validate the range with page_is_ram(), as done\nin commit cbf9c4b9617b (\"of: check previous kernel's ima-kexec-buffer\nagainst memory bounds\") do a similar check on x86.\n\nWithout carrying the measurement list across kexec, the attestation\nwould fail."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"arch/x86/kernel/setup.c"
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],
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"versions": [
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{
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"version": "b69a2afd5afce9bf6d56e349d6ab592c916e20f2",
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"lessThan": "37f18915a261afe84dab462624ed829cddb77a9b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b69a2afd5afce9bf6d56e349d6ab592c916e20f2",
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"lessThan": "22e460b6333a5f818b042ac89201f8e735556f4a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b69a2afd5afce9bf6d56e349d6ab592c916e20f2",
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"lessThan": "7e2476057950c174c7b2c2802246707bbfb497e4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b69a2afd5afce9bf6d56e349d6ab592c916e20f2",
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"lessThan": "f8f73bf0f8a57ee9b86792456bd42079bc98c6b7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b69a2afd5afce9bf6d56e349d6ab592c916e20f2",
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"lessThan": "d4a132f121c591b60dbaf57ea91f1faf11631fbc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b69a2afd5afce9bf6d56e349d6ab592c916e20f2",
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"lessThan": "4d7a8f5f28187e3d2958b2a134473da2665207e7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b69a2afd5afce9bf6d56e349d6ab592c916e20f2",
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"lessThan": "c5489d04337b47e93c0623e8145fcba3f5739efd",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"arch/x86/kernel/setup.c"
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],
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"versions": [
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{
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"version": "6.0",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.0",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.165",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.128",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.143",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.75",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.16",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.6",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.0",
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"versionEndExcluding": "6.1.165"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.0",
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"versionEndExcluding": "6.6.128"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.0",
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"versionEndExcluding": "6.6.143"
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.0",
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"versionEndExcluding": "6.12.75"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.0",
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"versionEndExcluding": "6.18.16"
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"versionStartIncluding": "6.0",
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"versionEndExcluding": "6.19.6"
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"versionStartIncluding": "6.0",
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/37f18915a261afe84dab462624ed829cddb77a9b"
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},
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{
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"url": "https://git.kernel.org/stable/c/22e460b6333a5f818b042ac89201f8e735556f4a"
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},
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{
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"url": "https://git.kernel.org/stable/c/7e2476057950c174c7b2c2802246707bbfb497e4"
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},
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{
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"url": "https://git.kernel.org/stable/c/f8f73bf0f8a57ee9b86792456bd42079bc98c6b7"
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},
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{
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"url": "https://git.kernel.org/stable/c/d4a132f121c591b60dbaf57ea91f1faf11631fbc"
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},
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{
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"url": "https://git.kernel.org/stable/c/4d7a8f5f28187e3d2958b2a134473da2665207e7"
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},
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{
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"url": "https://git.kernel.org/stable/c/c5489d04337b47e93c0623e8145fcba3f5739efd"
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}
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],
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"title": "x86/kexec: add a sanity check on previous kernel's ima kexec buffer",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-43240",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T15:31:10.692661Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T15:32:37.007Z"
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}
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}
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]
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}
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} |