122 lines
5.8 KiB
JSON
122 lines
5.8 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-2026-64167",
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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": "2026-07-19T07:54:57.038Z",
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"datePublished": "2026-07-19T15:40:52.023Z",
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"dateUpdated": "2026-07-19T15:40:52.023Z"
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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": "2026-07-19T15:40:52.023Z"
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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\nkho: skip KHO for crash kernel\n\nkho_fill_kimage() unconditionally populates the kimage with KHO\nmetadata for every kexec image type. When the image is a crash kernel,\nthis can be problematic as the crash kernel can run in a small reserved\nregion and the KHO scratch areas can sit outside it.\nThe crash kernel then faults during kho_memory_init() when it\ntries phys_to_virt() on the KHO FDT address:\n\n Unable to handle kernel paging request at virtual address xxxxxxxx\n ...\n fdt_offset_ptr+...\n fdt_check_node_offset_+...\n fdt_first_property_offset+...\n fdt_get_property_namelen_+...\n fdt_getprop+...\n kho_memory_init+...\n mm_core_init+...\n start_kernel+...\n\nkho_locate_mem_hole() already skips KHO logic for KEXEC_TYPE_CRASH\nimages, but kho_fill_kimage() was missing the same guard. As\nkho_fill_kimage() is the single point that populates image->kho.fdt\nand image->kho.scratch, fixing it here is sufficient for both arm64\nand x86 as the FDT and boot_params path are bailing out when these\nfields are unset."
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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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"kernel/liveupdate/kexec_handover.c"
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],
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"versions": [
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{
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"version": "d7255959b69a4e727c61eb04231d11390d4f391e",
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"lessThan": "a6ac6721326a75ff2d14c68db05f93b576d8762f",
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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": "d7255959b69a4e727c61eb04231d11390d4f391e",
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"lessThan": "a6715d7ec472a476db17787697a4abda62962284",
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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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"kernel/liveupdate/kexec_handover.c"
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],
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"versions": [
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{
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"version": "6.19",
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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": "6.19",
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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": "7.0.11",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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": "6.19",
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"versionEndExcluding": "7.0.11"
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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": "6.19",
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"versionEndExcluding": "7.1"
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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/a6ac6721326a75ff2d14c68db05f93b576d8762f"
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},
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{
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"url": "https://git.kernel.org/stable/c/a6715d7ec472a476db17787697a4abda62962284"
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}
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],
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"title": "kho: skip KHO for crash kernel",
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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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}
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} |