184 lines
8.8 KiB
JSON
184 lines
8.8 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-2024-56668",
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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": "2024-12-27T15:00:39.844Z",
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"datePublished": "2024-12-27T15:06:29.879Z",
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"dateUpdated": "2026-05-11T20:56:56.558Z"
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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": "2026-05-11T20:56:56.558Z"
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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\niommu/vt-d: Fix qi_batch NULL pointer with nested parent domain\n\nThe qi_batch is allocated when assigning cache tag for a domain. While\nfor nested parent domain, it is missed. Hence, when trying to map pages\nto the nested parent, NULL dereference occurred. Also, there is potential\nmemleak since there is no lock around domain->qi_batch allocation.\n\nTo solve it, add a helper for qi_batch allocation, and call it in both\nthe __cache_tag_assign_domain() and __cache_tag_assign_parent_domain().\n\n BUG: kernel NULL pointer dereference, address: 0000000000000200\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 8104795067 P4D 0\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 223 UID: 0 PID: 4357 Comm: qemu-system-x86 Not tainted 6.13.0-rc1-00028-g4b50c3c3b998-dirty #2632\n Call Trace:\n ? __die+0x24/0x70\n ? page_fault_oops+0x80/0x150\n ? do_user_addr_fault+0x63/0x7b0\n ? exc_page_fault+0x7c/0x220\n ? asm_exc_page_fault+0x26/0x30\n ? cache_tag_flush_range_np+0x13c/0x260\n intel_iommu_iotlb_sync_map+0x1a/0x30\n iommu_map+0x61/0xf0\n batch_to_domain+0x188/0x250\n iopt_area_fill_domains+0x125/0x320\n ? rcu_is_watching+0x11/0x50\n iopt_map_pages+0x63/0x100\n iopt_map_common.isra.0+0xa7/0x190\n iopt_map_user_pages+0x6a/0x80\n iommufd_ioas_map+0xcd/0x1d0\n iommufd_fops_ioctl+0x118/0x1c0\n __x64_sys_ioctl+0x93/0xc0\n do_syscall_64+0x71/0x140\n entry_SYSCALL_64_after_hwframe+0x76/0x7e"
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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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"drivers/iommu/intel/cache.c"
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],
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"versions": [
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{
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"version": "705c1cdf1e73c4c727bbfc8775434e6dd36e8baf",
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"lessThan": "ffd774c34774fd4cc0e9cf2976595623a6c3a077",
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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": "705c1cdf1e73c4c727bbfc8775434e6dd36e8baf",
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"lessThan": "74536f91962d5f6af0a42414773ce61e653c10ee",
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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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"drivers/iommu/intel/cache.c"
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],
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"versions": [
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{
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"version": "6.12",
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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": "6.12",
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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": "6.12.6",
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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": "6.13",
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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": "6.12",
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"versionEndExcluding": "6.12.6"
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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": "6.12",
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"versionEndExcluding": "6.13"
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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/ffd774c34774fd4cc0e9cf2976595623a6c3a077"
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},
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{
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"url": "https://git.kernel.org/stable/c/74536f91962d5f6af0a42414773ce61e653c10ee"
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}
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],
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"title": "iommu/vt-d: Fix qi_batch NULL pointer with nested parent domain",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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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-2024-56668",
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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": "2025-10-01T19:59:41.118467Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-476",
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"description": "CWE-476 NULL Pointer Dereference"
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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": "2025-10-01T20:07:09.384Z"
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}
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}
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]
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}
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} |