243 lines
13 KiB
JSON
243 lines
13 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-97448",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-09-24T14:53:16.870Z",
|
|
"datePublished": "2026-09-24T16:04:03.667Z",
|
|
"dateUpdated": "2026-10-03T10:58:31.976Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-10-03T10:58:31.976Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Add validation for node in acpi_ns_build_normalized_path()\n\nAdd validation for node in acpi_ns_build_normalized_path()\nto prevent use-after-free vulnerabilities."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
|
|
"baseScore": 7.7,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The stale node that acpi_ns_build_normalized_path() walks is produced while executing attacker-supplied DSDT/SSDT AML: acpi_bus_init()→acpi_load_tables()→acpi_tb_load_namespace()→acpi_ns_load_table()→acpi_ns_execute_table()→acpi_ps_parse_aml()→acpi_ds_terminate_control_method()→acpi_ex_stop_trace_method()→acpi_ns_get_normalized_pathname(); those table bytes come from platform firmware, not a network protocol.\nAC:L - ACPICA issue #1138 reproduces a deterministic heap-use-after-free: acpi_ps_parse_aml() frees a walk_state via acpi_ds_delete_walk_state(), then acpi_ds_terminate_control_method() calls acpi_ex_stop_trace_method() which always invokes acpi_ns_get_normalized_pathname() on method_desc->method.node; crafted AML (issue33.aml) makes that pointer alias the freed walk_state with no race.\nPR:N - acpi_bus_init() calls acpi_load_tables() at boot with no capable() or credential check, so module-level AML in a compromised DSDT/SSDT reaches acpi_ex_stop_trace_method()→acpi_ns_build_normalized_path() inside acpi_ns_execute_table() before any Linux account exists.\nUI:N - acpi_ns_execute_table() evaluates the DSDT/SSDT as a module-level method during acpi_load_tables() on ordinary power-on; the terminate-path UAF fires without a victim mount, sysfs open, or configfs SSDT write.\nS:U - The use-after-free is ACPI_MOVE_32_TO_32 of next_node->name inside a freed host-kernel acpi_walk_state in acpi_ns_build_normalized_path(); it does not cross a KVM/Xen, IOMMU, or sandbox boundary.\nC:H - acpi_ns_build_normalized_path() reads 4-byte namesegs and follows next_node->parent on the freed 1176-byte walk_state (ASAN: heap-use-after-free READ of size 4 at the ACPI_MOVE_32_TO_32 of next_node->name); after slab reuse that parent walk is an unbounded kernel-heap read, not a few header bytes.\nI:N - The UAF is a read of next_node->name and next_node->parent; ACPI_PATH_PUT8 only writes into the separately allocated pathname buffer from acpi_ns_get_normalized_pathname(), and acpi_ex_stop_trace_method() then ACPI_FREE()s that buffer, so there is no write through the freed walk_state.\nA:H - The reported AddressSanitizer heap-use-after-free in AcpiNsBuildNormalizedPath during AcpiLoadTables/acpi_ns_execute_table oopses the kernel at boot, and a cyclic parent pointer in the reclaimed walk_state can also hang the while (next_node && next_node != acpi_gbl_root_node) loop."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/acpi/acpica/nsnames.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
|
|
"lessThan": "087eed8b347e14864f8806fa1f5976c7dc2c6792",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
|
|
"lessThan": "b06bb9b82c8f9a522dde213b1e0ddd535f22e3a2",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
|
|
"lessThan": "90ebe7f8bb6ca1c6eadb16bed141ab8bb3dbab70",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
|
|
"lessThan": "26dd27000e9540fcb594f15010b0696b03b0d240",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
|
|
"lessThan": "babb146ceb79e71f328788f1e2c8c7c224026e61",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
|
|
"lessThan": "21a73528579fcbd673b668bd27a05b658123bc1b",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
|
|
"lessThan": "96b2b616870e46e2bc04efec03879683a0036e66",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/acpi/acpica/nsnames.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "4.3",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "4.3",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.271",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.222",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.189",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.158",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.111",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.53",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.2",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.3",
|
|
"versionEndExcluding": "5.10.271"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.3",
|
|
"versionEndExcluding": "5.15.222"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.3",
|
|
"versionEndExcluding": "6.1.189"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.3",
|
|
"versionEndExcluding": "6.6.158"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.3",
|
|
"versionEndExcluding": "6.12.111"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.3",
|
|
"versionEndExcluding": "6.18.53"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.3",
|
|
"versionEndExcluding": "7.2"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/087eed8b347e14864f8806fa1f5976c7dc2c6792"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/b06bb9b82c8f9a522dde213b1e0ddd535f22e3a2"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/90ebe7f8bb6ca1c6eadb16bed141ab8bb3dbab70"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/26dd27000e9540fcb594f15010b0696b03b0d240"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/babb146ceb79e71f328788f1e2c8c7c224026e61"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/21a73528579fcbd673b668bd27a05b658123bc1b"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/96b2b616870e46e2bc04efec03879683a0036e66"
|
|
}
|
|
],
|
|
"title": "ACPICA: Add validation for node in acpi_ns_build_normalized_path()",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |