mirror of
https://github.com/CVEProject/cvelist.git
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113 lines
5.7 KiB
JSON
113 lines
5.7 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-2023-52455",
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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\niommu: Don't reserve 0-length IOVA region\n\nWhen the bootloader/firmware doesn't setup the framebuffers, their\naddress and size are 0 in \"iommu-addresses\" property. If IOVA region is\nreserved with 0 length, then it ends up corrupting the IOVA rbtree with\nan entry which has pfn_hi < pfn_lo.\nIf we intend to use display driver in kernel without framebuffer then\nit's causing the display IOMMU mappings to fail as entire valid IOVA\nspace is reserved when address and length are passed as 0.\nAn ideal solution would be firmware removing the \"iommu-addresses\"\nproperty and corresponding \"memory-region\" if display is not present.\nBut the kernel should be able to handle this by checking for size of\nIOVA region and skipping the IOVA reservation if size is 0. Also, add\na warning if firmware is requesting 0-length IOVA region reservation."
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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": "a5bf3cfce8cb",
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"version_value": "98b8a550da83"
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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": "6.3",
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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": "6.3",
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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": "6.6.14",
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"lessThanOrEqual": "6.6.*",
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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": "6.7.2",
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"lessThanOrEqual": "6.7.*",
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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": "6.8",
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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/98b8a550da83cc392a14298c4b3eaaf0332ae6ad",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/98b8a550da83cc392a14298c4b3eaaf0332ae6ad"
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},
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{
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"url": "https://git.kernel.org/stable/c/5e23e283910c9f30248732ae0770bcb0c9438abf",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/5e23e283910c9f30248732ae0770bcb0c9438abf"
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},
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{
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"url": "https://git.kernel.org/stable/c/bb57f6705960bebeb832142ce9abf43220c3eab1",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/bb57f6705960bebeb832142ce9abf43220c3eab1"
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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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} |