CVE-2026-43476

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Use sizeof(*meas) to\ncorrectly match the buffer element type."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - An attacker reaches the vulnerable path by locally reading world-readable IIO sysfs channel attributes for the SPS30 I2C device, which invoke the driver read path. The bug is not exposed through a network protocol or adjacent wireless interface.\nAC:L - Triggering requires only a normal measurement read once an affected SPS30 I2C device is present; there is no race and the attacker controls repeated attempts. The 64-bit size_t condition is a common affected platform property, not an exploitation hurdle.\nPR:L - The raw IIO channel attributes are created read-only with mode 0444, so any basic local unprivileged user can trigger the vulnerable read. No CAP_SYS_ADMIN, CAP_NET_ADMIN, root-only ioctl, or user-namespace capability path is required.\nUI:N - No victim action is required after the attacker has local access. The attacker can directly read the exposed sysfs attribute.\nS:U - The memory corruption occurs in kernel driver context and affects the same kernel security authority. This is a standard local kernel compromise scenario, not a VM, IOMMU, or sandbox boundary crossing that changes scope.\nC:H - The old sizeof(num) calculation causes decoded I2C measurement data to be copied past the caller's 32-bit measurement buffer on the kernel stack. As an out-of-bounds stack write, this memory corruption is defensibly treated as capable of enabling kernel information disclosure.\nI:H - The bug is an out-of-bounds kernel stack write of up to 16 bytes on the PM10/read-buffer path, and repeated local triggering is possible. Kernel OOB writes are treated as high integrity impact because they can plausibly corrupt control data or other sensitive stack state.\nA:H - The stack corruption can crash or oops the kernel, especially with stack protector or corrupted adjacent state. Repeated unprivileged reads can therefore cause high availability impact."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/chemical/sps30_i2c.c"], "versions": [{"version": "8f3f130852785dac0759843835ca97c3bacc2b10", "lessThan": "9aff2e9c2927ecd9652872a43a0725f101128104", "status": "affected", "versionType": "git"}, {"version": "8f3f130852785dac0759843835ca97c3bacc2b10", "lessThan": "08881d82f94deaa51800360029908863e5c4c39d", "status": "affected", "versionType": "git"}, {"version": "8f3f130852785dac0759843835ca97c3bacc2b10", "lessThan": "dcdf1e92674efb6692f4ebe189e0aa9fde23a541", "status": "affected", "versionType": "git"}, {"version": "8f3f130852785dac0759843835ca97c3bacc2b10", "lessThan": "2a4d111a6a34afb8bb4f118009e7728ed2ec7e10", "status": "affected", "versionType": "git"}, {"version": "8f3f130852785dac0759843835ca97c3bacc2b10", "lessThan": "90e978ace598567e6e30de79805bddf37cf892ac", "status": "affected", "versionType": "git"}, {"version": "8f3f130852785dac0759843835ca97c3bacc2b10", "lessThan": "165f12b40901c6a7aca15796da239726ddcdc5ad", "status": "affected", "versionType": "git"}, {"version": "8f3f130852785dac0759843835ca97c3bacc2b10", "lessThan": "216345f98cae7fcc84f49728c67478ac00321c87", "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/chemical/sps30_i2c.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.167", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.19", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.9", "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": "5.14", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.1.167"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.19.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9aff2e9c2927ecd9652872a43a0725f101128104"}, {"url": "https://git.kernel.org/stable/c/08881d82f94deaa51800360029908863e5c4c39d"}, {"url": "https://git.kernel.org/stable/c/dcdf1e92674efb6692f4ebe189e0aa9fde23a541"}, {"url": "https://git.kernel.org/stable/c/2a4d111a6a34afb8bb4f118009e7728ed2ec7e10"}, {"url": "https://git.kernel.org/stable/c/90e978ace598567e6e30de79805bddf37cf892ac"}, {"url": "https://git.kernel.org/stable/c/165f12b40901c6a7aca15796da239726ddcdc5ad"}, {"url": "https://git.kernel.org/stable/c/216345f98cae7fcc84f49728c67478ac00321c87"}], "title": "iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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Use sizeof(*meas) to\ncorrectly match the buffer element type."}], "id": "CVE-2026-43476", "lastModified": "2026-06-26T20:18:11.237", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-05-13T16:16:50.680", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/08881d82f94deaa51800360029908863e5c4c39d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/165f12b40901c6a7aca15796da239726ddcdc5ad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/216345f98cae7fcc84f49728c67478ac00321c87"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a4d111a6a34afb8bb4f118009e7728ed2ec7e10"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/90e978ace598567e6e30de79805bddf37cf892ac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9aff2e9c2927ecd9652872a43a0725f101128104"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dcdf1e92674efb6692f4ebe189e0aa9fde23a541"}], "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: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()", "id": "2477145", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477145"}, "csaw": false, "cwe": "CWE-131", "details": ["A flaw was found in the Linux kernel, specifically within a module responsible for handling sensor data. This vulnerability is caused by an error in calculating the correct size for a data buffer. An attacker could potentially exploit this issue to corrupt memory, which might lead to the system becoming unresponsive (Denial of Service) or the unauthorized disclosure of sensitive information."], "name": "CVE-2026-43476", "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": "2026-05-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43476\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43476\nhttps://lore.kernel.org/linux-cve-announce/2026051344-CVE-2026-43476-0f4f@gregkh/T"], "threat_severity": "Moderate"}

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