CVE-2026-43307

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Therefore,the number of entries reported by the FIFO status\nregisters may not be a multiple of N; if this number is not a multiple, the\nnumber of entries read from the FIFO may exceed the number of entries\nactually present.\n\nTo fix the above issue, round down the number of FIFO entries read from the\nstatus registers so that it is always a multiple of N."}], "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 - The vulnerable ADXL380 FIFO read path is reached through local IIO buffer configuration and the device interrupt handler, not through a network or adjacent protocol.\nAC:L - An attacker with access to the local IIO controls can select multiple scan elements, enable the buffer, and rely on normal FIFO filling/interrupt handling; no race or condition outside attacker influence is required.\nPR:L - The path requires write access to local IIO sysfs buffer/scan controls. Although stock sysfs DAC is often root-owned, plausible sensor deployments delegate this to a low-privileged service or device-access account, and the higher-severity choice is PR:L.\nUI:N - Once the attacker can configure the IIO buffer, exploitation does not require a separate victim action.\nS:U - The corruption occurs in the kernel driver\u2019s own allocation and does not cross a VM, IOMMU, or other separate security authority boundary.\nC:H - The final partial FIFO batch can cause an out-of-bounds write past the fixed kernel FIFO buffer, which is memory corruption that can plausibly be leveraged into kernel information disclosure.\nI:H - The bug can write beyond `st->fifo_buf` when the FIFO count is not aligned to the enabled scan-set size, making kernel memory corruption and control-flow compromise defensible.\nA:H - Even without full exploitation, the out-of-bounds kernel write can corrupt adjacent heap memory and cause an oops, panic, or system instability."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/accel/adxl380.c"], "versions": [{"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "lessThan": "a40f316085985f916ba1599fc303fdbc6a078e86", "status": "affected", "versionType": "git"}, {"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "lessThan": "a8e88edfd69df7b63c882aa53e61e7c078806ad7", "status": "affected", "versionType": "git"}, {"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "lessThan": "f42ddb2945ae4ce2b6f1c2e7aae9f14455a734d3", "status": "affected", "versionType": "git"}, {"version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "lessThan": "c1b14015224cfcccd5356333763f2f4f401bd810", "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/accel/adxl380.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "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": "6.12", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a40f316085985f916ba1599fc303fdbc6a078e86"}, {"url": "https://git.kernel.org/stable/c/a8e88edfd69df7b63c882aa53e61e7c078806ad7"}, {"url": "https://git.kernel.org/stable/c/f42ddb2945ae4ce2b6f1c2e7aae9f14455a734d3"}, {"url": "https://git.kernel.org/stable/c/c1b14015224cfcccd5356333763f2f4f401bd810"}], "title": "iio: accel: adxl380: Avoid reading more entries than present in FIFO", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iio/accel/adxl380.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a40f316085985f916ba1599fc303fdbc6a078e86", "status": "affected", "version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "versionType": "git"}, {"lessThan": "a8e88edfd69df7b63c882aa53e61e7c078806ad7", "status": "affected", "version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "versionType": "git"}, {"lessThan": "f42ddb2945ae4ce2b6f1c2e7aae9f14455a734d3", "status": "affected", "version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "versionType": "git"}, {"lessThan": "c1b14015224cfcccd5356333763f2f4f401bd810", "status": "affected", "version": "df36de13677a0ebd3ab31dd2c603f9eafdf8de7d", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iio/accel/adxl380.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"lessThan": "6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.16", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.6", "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": "91F4DDF8-DCB5-433F-9A96-EB7DD49CF8DB", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.12", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "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: accel: adxl380: Avoid reading more entries than present in FIFO\n\nThe interrupt handler reads FIFO entries in batches of N samples, where N\nis the number of scan elements that have been enabled. However, the sensor\nfills the FIFO one sample at a time, even when more than one channel is\nenabled. Therefore,the number of entries reported by the FIFO status\nregisters may not be a multiple of N; if this number is not a multiple, the\nnumber of entries read from the FIFO may exceed the number of entries\nactually present.\n\nTo fix the above issue, round down the number of FIFO entries read from the\nstatus registers so that it is always a multiple of N."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\niio: accel: adxl380: Evitar leer m\u00e1s entradas de las presentes en la FIFO\n\nEl gestor de interrupciones lee entradas de la FIFO en lotes de N muestras, donde N es el n\u00famero de elementos de escaneo que han sido habilitados. Sin embargo, el sensor llena la FIFO una muestra a la vez, incluso cuando hay m\u00e1s de un canal habilitado. Por lo tanto, el n\u00famero de entradas reportado por los registros de estado de la FIFO puede no ser un m\u00faltiplo de N; si este n\u00famero no es un m\u00faltiplo, el n\u00famero de entradas le\u00eddas de la FIFO puede exceder el n\u00famero de entradas realmente presentes.\n\nPara solucionar el problema anterior, redondear a la baja el n\u00famero de entradas de la FIFO le\u00eddas de los registros de estado para que sea siempre un m\u00faltiplo de N."}], "id": "CVE-2026-43307", "lastModified": "2026-11-11T20:10:00.273", "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": "2026-05-08T14:16:38.027", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a40f316085985f916ba1599fc303fdbc6a078e86"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a8e88edfd69df7b63c882aa53e61e7c078806ad7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c1b14015224cfcccd5356333763f2f4f401bd810"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f42ddb2945ae4ce2b6f1c2e7aae9f14455a734d3"}], "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: accel: adxl380: Avoid reading more entries than present in FIFO", "id": "2468101", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468101"}, "csaw": false, "cwe": "CWE-805", "details": ["A flaw was found in the Linux kernel's `iio: accel: adxl380` driver. The driver's interrupt handler, responsible for reading data from the sensor's FIFO (First-In, First-Out) buffer, can miscalculate the number of entries. This error may cause the driver to attempt to read beyond the actual data present in the buffer. Such an out-of-bounds read can lead to system instability or a crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-43307", "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": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43307\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43307\nhttps://lore.kernel.org/linux-cve-announce/2026050858-CVE-2026-43307-5b3e@gregkh/T"]}

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