183 lines
9.3 KiB
JSON
183 lines
9.3 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-2024-53071",
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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": "2024-11-19T17:17:24.976Z",
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"datePublished": "2024-11-19T17:22:38.327Z",
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"dateUpdated": "2026-05-11T20:50:17.522Z"
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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": "2026-05-11T20:50:17.522Z"
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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\ndrm/panthor: Be stricter about IO mapping flags\n\nThe current panthor_device_mmap_io() implementation has two issues:\n\n1. For mapping DRM_PANTHOR_USER_FLUSH_ID_MMIO_OFFSET,\n panthor_device_mmap_io() bails if VM_WRITE is set, but does not clear\n VM_MAYWRITE. That means userspace can use mprotect() to make the mapping\n writable later on. This is a classic Linux driver gotcha.\n I don't think this actually has any impact in practice:\n When the GPU is powered, writes to the FLUSH_ID seem to be ignored; and\n when the GPU is not powered, the dummy_latest_flush page provided by the\n driver is deliberately designed to not do any flushes, so the only thing\n writing to the dummy_latest_flush could achieve would be to make *more*\n flushes happen.\n\n2. panthor_device_mmap_io() does not block MAP_PRIVATE mappings (which are\n mappings without the VM_SHARED flag).\n MAP_PRIVATE in combination with VM_MAYWRITE indicates that the VMA has\n copy-on-write semantics, which for VM_PFNMAP are semi-supported but\n fairly cursed.\n In particular, in such a mapping, the driver can only install PTEs\n during mmap() by calling remap_pfn_range() (because remap_pfn_range()\n wants to **store the physical address of the mapped physical memory into\n the vm_pgoff of the VMA**); installing PTEs later on with a fault\n handler (as panthor does) is not supported in private mappings, and so\n if you try to fault in such a mapping, vmf_insert_pfn_prot() splats when\n it hits a BUG() check.\n\nFix it by clearing the VM_MAYWRITE flag (userspace writing to the FLUSH_ID\ndoesn't make sense) and requiring VM_SHARED (copy-on-write semantics for\nthe FLUSH_ID don't make sense).\n\nReproducers for both scenarios are in the notes of my patch on the mailing\nlist; I tested that these bugs exist on a Rock 5B machine.\n\nNote that I only compile-tested the patch, I haven't tested it; I don't\nhave a working kernel build setup for the test machine yet. Please test it\nbefore applying it."
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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/gpu/drm/panthor/panthor_device.c"
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],
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"versions": [
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{
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"version": "5fe909cae118a757a77afb37174b99436a36d2e2",
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"lessThan": "2604afd65043e8f9d4be036cb1242adf6b5723cf",
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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": "5fe909cae118a757a77afb37174b99436a36d2e2",
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"lessThan": "f432a1621f049bb207e78363d9d0e3c6fa2da5db",
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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/gpu/drm/panthor/panthor_device.c"
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],
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"versions": [
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{
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"version": "6.10",
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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": "6.10",
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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": "6.11.8",
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"lessThanOrEqual": "6.11.*",
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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",
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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": "6.10",
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"versionEndExcluding": "6.11.8"
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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": "6.10",
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"versionEndExcluding": "6.12"
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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/2604afd65043e8f9d4be036cb1242adf6b5723cf"
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},
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{
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"url": "https://git.kernel.org/stable/c/f432a1621f049bb207e78363d9d0e3c6fa2da5db"
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}
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],
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"title": "drm/panthor: Be stricter about IO mapping flags",
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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-2024-53071",
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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": "2025-10-01T20:12:23.550632Z"
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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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"description": "CWE-noinfo Not enough information"
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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": "2025-10-01T20:17:16.169Z"
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}
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}
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]
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}
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} |