CVE-2026-46326

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46326", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.112Z", "datePublished": "2026-06-09T12:25:53.893Z", "dateUpdated": "2026-08-05T12:31:21.635Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:31:21.635Z"}, "descriptions": [{"lang": "en", "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."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.4, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "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."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/pressure/mprls0025pa_spi.c"], "versions": [{"version": "a0858f0cd28e822b91376ae288d5548bc1847531", "lessThan": "72158f9ae29a9e56d0f9704ce461a866feaf9925", "status": "affected", "versionType": "git"}, {"version": "a0858f0cd28e822b91376ae288d5548bc1847531", "lessThan": "664ffdf34c01810085e4d85508b361c3fdd2ab40", "status": "affected", "versionType": "git"}, {"version": "a0858f0cd28e822b91376ae288d5548bc1847531", "lessThan": "9080c7ac30f5f8f8fcb7b27b56df60fea7909c21", "status": "affected", "versionType": "git"}, {"version": "a0858f0cd28e822b91376ae288d5548bc1847531", "lessThan": "1e0ac56c92e26115cbc8cfc639843725cb3a7d6a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/pressure/mprls0025pa_spi.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/72158f9ae29a9e56d0f9704ce461a866feaf9925"}, {"url": "https://git.kernel.org/stable/c/664ffdf34c01810085e4d85508b361c3fdd2ab40"}, {"url": "https://git.kernel.org/stable/c/9080c7ac30f5f8f8fcb7b27b56df60fea7909c21"}, {"url": "https://git.kernel.org/stable/c/1e0ac56c92e26115cbc8cfc639843725cb3a7d6a"}], "title": "iio: pressure: mprls0025pa: fix spi_transfer struct initialisation", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iio/pressure/mprls0025pa_spi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "72158f9ae29a9e56d0f9704ce461a866feaf9925", "status": "affected", "version": "a0858f0cd28e822b91376ae288d5548bc1847531", "versionType": "git"}, {"lessThan": "664ffdf34c01810085e4d85508b361c3fdd2ab40", "status": "affected", "version": "a0858f0cd28e822b91376ae288d5548bc1847531", "versionType": "git"}, {"lessThan": "9080c7ac30f5f8f8fcb7b27b56df60fea7909c21", "status": "affected", "version": "a0858f0cd28e822b91376ae288d5548bc1847531", "versionType": "git"}, {"lessThan": "1e0ac56c92e26115cbc8cfc639843725cb3a7d6a", "status": "affected", "version": "a0858f0cd28e822b91376ae288d5548bc1847531", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iio/pressure/mprls0025pa_spi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F8A1C6F6-2847-4C53-ABFC-8F07D96900D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "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."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad se ha resuelto:\n\niio: pressure: mprls0025pa: correcci\u00f3n de la inicializaci\u00f3n de la estructura spi_transfer\n\nAseg\u00farese de que la estructura spi_transfer se ponga a cero antes de su uso."}], "id": "CVE-2026-46326", "lastModified": "2026-07-23T08:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-06-09T14:16:42.300", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1e0ac56c92e26115cbc8cfc639843725cb3a7d6a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/664ffdf34c01810085e4d85508b361c3fdd2ab40"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/72158f9ae29a9e56d0f9704ce461a866feaf9925"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9080c7ac30f5f8f8fcb7b27b56df60fea7909c21"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: iio: pressure: mprls0025pa: fix spi_transfer struct initialisation", "id": "2486997", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486997"}, "csaw": false, "cwe": "CWE-909", "details": ["A flaw was found in the Linux kernel, specifically within the `iio: pressure: mprls0025pa` driver. This vulnerability is due to improper initialization of the `spi_transfer` structure, which is not consistently zeroed out before use. This could allow an attacker to potentially read sensitive information from uninitialized memory or cause a denial of service due to unpredictable system behavior."], "name": "CVE-2026-46326", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46326\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46326\nhttps://lore.kernel.org/linux-cve-announce/2026060909-CVE-2026-46326-2f79@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0858f0cd28e822b91376ae288d5548bc1847531,72158f9ae29a9e56d0f9704ce461a866feaf9925)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0858f0cd28e822b91376ae288d5548bc1847531,664ffdf34c01810085e4d85508b361c3fdd2ab40)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0858f0cd28e822b91376ae288d5548bc1847531,9080c7ac30f5f8f8fcb7b27b56df60fea7909c21)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0858f0cd28e822b91376ae288d5548bc1847531,1e0ac56c92e26115cbc8cfc639843725cb3a7d6a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-09T16:00:06.210695+00:00", "updated": "2026-08-12T04:45:04.551613+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}