mirror of
https://github.com/CVEProject/cvelist.git
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168 lines
9.0 KiB
JSON
168 lines
9.0 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2022-48991",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/khugepaged: invoke MMU notifiers in shmem/file collapse paths\n\nAny codepath that zaps page table entries must invoke MMU notifiers to\nensure that secondary MMUs (like KVM) don't keep accessing pages which\naren't mapped anymore. Secondary MMUs don't hold their own references to\npages that are mirrored over, so failing to notify them can lead to page\nuse-after-free.\n\nI'm marking this as addressing an issue introduced in commit f3f0e1d2150b\n(\"khugepaged: add support of collapse for tmpfs/shmem pages\"), but most of\nthe security impact of this only came in commit 27e1f8273113 (\"khugepaged:\nenable collapse pmd for pte-mapped THP\"), which actually omitted flushes\nfor the removal of present PTEs, not just for the removal of empty page\ntables."
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "f3f0e1d2150b",
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"version_value": "275c626c131c"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "4.8",
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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": "4.8",
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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": "4.9.337",
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"lessThanOrEqual": "4.9.*",
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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": "4.14.303",
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"lessThanOrEqual": "4.14.*",
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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": "4.19.270",
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"lessThanOrEqual": "4.19.*",
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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": "5.4.227",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.159",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.83",
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"lessThanOrEqual": "5.15.*",
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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": "6.0.13",
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"lessThanOrEqual": "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",
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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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"defaultStatus": "affected"
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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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}
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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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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/275c626c131cfe141beeb6c575e31fa53d32da19",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/275c626c131cfe141beeb6c575e31fa53d32da19"
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},
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{
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"url": "https://git.kernel.org/stable/c/c23105673228c349739e958fa33955ed8faddcaf",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/c23105673228c349739e958fa33955ed8faddcaf"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/ff2a1a6f869650aec99e9d070b5ab625bfbc5bc3"
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},
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{
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"url": "https://git.kernel.org/stable/c/5ffc2a75534d9d74d49760f983f8eb675fa63d69",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/5ffc2a75534d9d74d49760f983f8eb675fa63d69"
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},
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{
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"url": "https://git.kernel.org/stable/c/7f445ca2e0e59c7971d0b7b853465e50844ab596",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/7f445ca2e0e59c7971d0b7b853465e50844ab596"
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},
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{
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"url": "https://git.kernel.org/stable/c/1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/1a3f8c6cd29d9078cc81b29d39d0e9ae1d6a03c3"
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},
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{
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"url": "https://git.kernel.org/stable/c/5450535901d89a5dcca5fbbc59a24fe89caeb465",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/5450535901d89a5dcca5fbbc59a24fe89caeb465"
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},
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{
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"url": "https://git.kernel.org/stable/c/f268f6cf875f3220afc77bdd0bf1bb136eb54db9",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/f268f6cf875f3220afc77bdd0bf1bb136eb54db9"
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}
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]
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},
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"generator": {
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"engine": "bippy-9e1c9544281a"
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}
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} |