mirror of
https://github.com/CVEProject/cvelist.git
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151 lines
8.6 KiB
JSON
151 lines
8.6 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-2024-38610",
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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\ndrivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map()\n\nPatch series \"mm: follow_pte() improvements and acrn follow_pte() fixes\".\n\nPatch #1 fixes a bunch of issues I spotted in the acrn driver. It\ncompiles, that's all I know. I'll appreciate some review and testing from\nacrn folks.\n\nPatch #2+#3 improve follow_pte(), passing a VMA instead of the MM, adding\nmore sanity checks, and improving the documentation. Gave it a quick test\non x86-64 using VM_PAT that ends up using follow_pte().\n\n\nThis patch (of 3):\n\nWe currently miss handling various cases, resulting in a dangerous\nfollow_pte() (previously follow_pfn()) usage.\n\n(1) We're not checking PTE write permissions.\n\nMaybe we should simply always require pte_write() like we do for\npin_user_pages_fast(FOLL_WRITE)? Hard to tell, so let's check for\nACRN_MEM_ACCESS_WRITE for now.\n\n(2) We're not rejecting refcounted pages.\n\nAs we are not using MMU notifiers, messing with refcounted pages is\ndangerous and can result in use-after-free. Let's make sure to reject them.\n\n(3) We are only looking at the first PTE of a bigger range.\n\nWe only lookup a single PTE, but memmap->len may span a larger area.\nLet's loop over all involved PTEs and make sure the PFN range is\nactually contiguous. Reject everything else: it couldn't have worked\neither way, and rather made use access PFNs we shouldn't be accessing."
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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": "b9c43aa0b18d",
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"version_value": "5c6705aa47b5"
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},
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{
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"version_affected": "<",
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"version_name": "8a6e85f75a83",
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"version_value": "afeb0e696276"
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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": "5.18",
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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": "5.18",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "5.15.161",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "6.1.93",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "6.6.33",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "6.8.12",
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"lessThanOrEqual": "6.8.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "6.9.3",
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"lessThanOrEqual": "6.9.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "6.10",
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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/5c6705aa47b5b78d7ad36fea832bb69caa5bf49a",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/5c6705aa47b5b78d7ad36fea832bb69caa5bf49a"
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},
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{
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"url": "https://git.kernel.org/stable/c/afeb0e69627695f759fc73c39c1640dbf8649b32",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/afeb0e69627695f759fc73c39c1640dbf8649b32"
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},
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{
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"url": "https://git.kernel.org/stable/c/e873f36ec890bece26ecce850e969917bceebbb6",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/e873f36ec890bece26ecce850e969917bceebbb6"
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},
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{
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"url": "https://git.kernel.org/stable/c/4c4ba3cf3a15ccfbaf787d0296fa42cdb00da9b4",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/4c4ba3cf3a15ccfbaf787d0296fa42cdb00da9b4"
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},
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{
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"url": "https://git.kernel.org/stable/c/2c8d6e24930b8ef7d4a81787627c559ae0e0d3bb",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/2c8d6e24930b8ef7d4a81787627c559ae0e0d3bb"
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},
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{
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"url": "https://git.kernel.org/stable/c/3d6586008f7b638f91f3332602592caa8b00b559",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/3d6586008f7b638f91f3332602592caa8b00b559"
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}
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]
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},
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"generator": {
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"engine": "bippy-c9c4e1df01b2"
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}
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} |