180 lines
9.2 KiB
JSON
180 lines
9.2 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-2026-46326",
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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": "2026-05-13T15:03:33.112Z",
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"datePublished": "2026-06-09T12:25:53.893Z",
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"dateUpdated": "2026-08-05T12:31:21.635Z"
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},
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:31:21.635Z"
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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\niio: pressure: mprls0025pa: fix spi_transfer struct initialisation\n\nMake sure that the spi_transfer struct is zeroed out before use."
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}
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],
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"metrics": [
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.4,
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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 bug is reached only through local kernel interfaces (IIO sysfs reads or buffered IIO character-device access) that invoke mpr_spi_xfer(); there is no network-facing or pre-auth remote code path to this driver.\nAC:L - On any system with the SPI driver bound to a Honeywell MPR sensor, an attacker can trigger the uninitialized spi_transfer on every pressure read with a simple, repeatable sysfs access; no race or attacker-uncontrollable memory layout is required.\nPR:N - IIO in_pressure_raw sysfs attributes are world-readable (0444), so any local unprivileged user can invoke the vulnerable SPI transfer without capabilities or namespace elevation.\nUI:N - Exploitation requires only the attacker reading the sensor sysfs node; no victim interaction such as plugging hardware or mounting filesystems is needed.\nS:U - Impact is confined to kernel memory and SPI subsystem state on the same host; it does not cross a VM, container, or IOMMU security boundary.\nC:H - Stack garbage in spi_transfer fields (especially transfer_list and DMA mapping flags) corrupts SPI core linked lists and mapping state, enabling arbitrary kernel memory reads during exploitation of the resulting corruption primitive.\nI:H - The same uninitialized fields produce out-of-bounds linked-list manipulation and potential erroneous DMA unmap operations, which are classic kernel memory-corruption primitives that can be leveraged for arbitrary write and code execution.\nA:H - Corrupting spi_message transfer lists or SPI/DMA teardown paths can cause immediate kernel oops/panic or sustained denial of service via malformed CS/delay handling on the SPI bus."
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}
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]
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}
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],
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{
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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/iio/pressure/mprls0025pa_spi.c"
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],
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"versions": [
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{
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"lessThan": "72158f9ae29a9e56d0f9704ce461a866feaf9925",
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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/iio/pressure/mprls0025pa_spi.c"
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],
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"versions": [
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{
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"version": "6.9",
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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": "6.9",
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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": "6.12.75",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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},
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{
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"version": "6.18.14",
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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": "6.19.4",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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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"versionStartIncluding": "6.9",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/72158f9ae29a9e56d0f9704ce461a866feaf9925"
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},
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{
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"url": "https://git.kernel.org/stable/c/664ffdf34c01810085e4d85508b361c3fdd2ab40"
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},
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{
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"url": "https://git.kernel.org/stable/c/9080c7ac30f5f8f8fcb7b27b56df60fea7909c21"
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},
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{
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"url": "https://git.kernel.org/stable/c/1e0ac56c92e26115cbc8cfc639843725cb3a7d6a"
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}
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],
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"title": "iio: pressure: mprls0025pa: fix spi_transfer struct initialisation",
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