280 lines
14 KiB
JSON
280 lines
14 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-2026-53159",
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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": "2026-06-09T07:44:35.388Z",
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"datePublished": "2026-06-25T08:38:41.482Z",
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"dateUpdated": "2026-08-05T12:33:33.871Z"
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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": "2026-08-05T12:33:33.871Z"
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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\nmisc: fastrpc: fix DMA address corruption due to find_vma misuse\n\nfastrpc_get_args() uses find_vma() to look up the VMA for a user-provided\npointer and compute a DMA address offset. When the address falls in a gap\nbefore the returned VMA, (ptr & PAGE_MASK) - vma->vm_start underflows,\ncorrupting the DMA address sent to the DSP.\n\nReplace find_vma() with vma_lookup(), which returns NULL when the address\nis not contained within any VMA."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable code is reached through local FastRPC misc-device ioctls, especially FASTRPC_IOCTL_INVOKE, not through network packets or adjacent/physical input.\nAC:L - The attacker controls the invoke arguments, DMA-buf fd, length, and user address layout; placing the pointer in a VMA gap is straightforward with mmap/munmap and no race is required.\nPR:L - A caller needs local access to an openable /dev/fastrpc-* device, but the kernel path has no capable() check and FastRPC supports untrusted/unsigned user protection domains on relevant Qualcomm DSP deployments.\nUI:N - The attacker triggers the ioctl path directly and does not need another user to open files, mount anything, or perform an action.\nS:C - The corrupted address is consumed across the host/DSP DMA/IOMMU boundary, so the bug can affect memory resources outside the caller’s intended FastRPC buffer authority.\nC:H - The underflow can make an attacker-controlled DSP invocation read from unintended DMA/IOMMU-visible memory rather than the supplied buffer, which is a plausible high-impact information disclosure primitive.\nI:H - For output or bidirectional buffers, the same corrupted DMA address can direct DSP writes to unintended DMA/IOMMU-visible memory, giving a plausible high-impact memory corruption primitive.\nA:H - Invalid or unintended DMA addresses can trigger IOMMU/DSP faults, hangs, or kernel-facing subsystem failure, producing high availability impact."
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}
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]
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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/misc/fastrpc.c"
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],
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"versions": [
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{
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"version": "80f3afd72bd4149c57daf852905476b43bb47647",
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"lessThan": "d43afc412d439ffca1567e7ca8652be22f272b3b",
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"status": "affected",
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"status": "affected",
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"status": "affected",
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"lessThan": "464c6ad2aa16e1e1df9d559289199356493d1e00",
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"status": "affected",
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},
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{
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"version": "954edc466128479872731d06f026d0e71840d153",
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"status": "affected",
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},
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{
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"version": "5.1.6",
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"status": "affected",
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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/misc/fastrpc.c"
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],
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"versions": [
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{
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"version": "5.2",
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"status": "affected"
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},
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{
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"version": "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": "5.10.260",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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},
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{
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"version": "5.15.210",
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"lessThanOrEqual": "5.15.*",
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},
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{
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"version": "6.1.176",
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},
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{
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"version": "6.6.143",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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},
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{
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"version": "6.12.94",
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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": "6.18.36",
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"lessThanOrEqual": "6.18.*",
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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": "7.0.13",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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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}
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],
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"cpeApplicability": [
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"negate": false,
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/d43afc412d439ffca1567e7ca8652be22f272b3b"
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},
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{
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"url": "https://git.kernel.org/stable/c/2d0f47e27c1fa718b29c69aa7c96a2c5161bc2c2"
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},
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{
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},
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{
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"url": "https://git.kernel.org/stable/c/d3e26df2e8eb361e6bef096b2fd565476a1f14c4"
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},
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{
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"url": "https://git.kernel.org/stable/c/e69e306a4cccb40a73511350cb280825a556ce3c"
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},
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{
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"url": "https://git.kernel.org/stable/c/53e06f8a3c2b085c31bf1284e2ebcb8036e99625"
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},
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{
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"url": "https://git.kernel.org/stable/c/7ba7b30ddb04646d4d638f4d8c4718a304bbbddd"
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},
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{
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"url": "https://git.kernel.org/stable/c/464c6ad2aa16e1e1df9d559289199356493d1e00"
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}
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],
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"title": "misc: fastrpc: fix DMA address corruption due to find_vma misuse",
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"x_generator": {
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"engine": "bippy-1.2.0"
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} |