{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80696", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.785Z", "datePublished": "2026-08-28T06:53:01.632Z", "dateUpdated": "2026-08-29T06:22:19.564Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-29T06:22:19.564Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (ltc4282) Fix reading the minimum alarm voltage\n\nCoverity reports an out-of-bounds access when reading the minimum alarm\nvoltage for the VGPIO channel. Add the missing return statement to fix\nthe problem."}], "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 bug is reached only by a local read(2) on /sys/class/hwmon/hwmonN/in2_min_alarm (sysfs -> hwmon_attr_show -> ltc4282_read -> ltc4282_read_in); the LTC4282 I2C hwmon driver has no network, wireless, or direct physical-bus attack surface.\nAC:L - On systems with an LTC4282 bound, any read of in2_min_alarm deterministically executes the missing-return fallthrough and out-of-bounds in0_1_cache[2].en access; the attacker fully controls triggering with no race or conditions outside their control.\nPR:L - in2_min_alarm is exposed as mode 0444 with no capability checks beyond standard sysfs permissions, so any unprivileged local user on a host with LTC4282 hardware can invoke the vulnerable read path without init-namespace root or user-namespace privileges.\nUI:N - Exploitation requires only the attacker (or attacker-controlled monitoring software) to read the hwmon sysfs attribute; no separate victim action such as plugging hardware, mounting filesystems, or approving prompts is needed.\nS:U - The out-of-bounds read and conditional hardware alarm-bit clearing remain within the host kernel/driver context managing the local LTC4282; they do not cross VM, container, IOMMU, or other changed security-authority boundaries.\nC:H - The fallthrough indexes in0_1_cache[2] past the two-element array, performing an out-of-bounds read of adjacent ltc4282_state memory (energy_en/padding) that steers control flow and can return incorrect in2_min_alarm data to userspace.\nI:H - When the out-of-bounds .en byte is non-zero, the fallthrough calls __ltc4282_read_alarm() with VSOURCE_ALARM_L_MASK, clearing the VSOURCE undervoltage alarm bit on the live LTC4282 hot-swap controller and corrupting safety-critical power-rail monitoring on datacenter/telecom racks.\nA:H - Clearing VSOURCE undervoltage alarms on an LTC4282 controlling live backplane/linecard hot-swap power can mask critical rail faults, enabling undetected power events and sustained rack or linecard outages on affected server and industrial deployments."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hwmon/ltc4282.c"], "versions": [{"version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "lessThan": "338d655fe09b95a88788c6ac8b1651ca8db9ae51", "status": "affected", "versionType": "git"}, {"version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "lessThan": "08aee6d45eefc9e0b94c21bd442f47b21d64fa2c", "status": "affected", "versionType": "git"}, {"version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "lessThan": "a0668ac20feaa3fff9e0c0548556368dbbd2d439", "status": "affected", "versionType": "git"}, {"version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "lessThan": "00feb1cce93dab948a299b69753d99c681d45a0b", "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/hwmon/ltc4282.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/338d655fe09b95a88788c6ac8b1651ca8db9ae51"}, {"url": "https://git.kernel.org/stable/c/08aee6d45eefc9e0b94c21bd442f47b21d64fa2c"}, {"url": "https://git.kernel.org/stable/c/a0668ac20feaa3fff9e0c0548556368dbbd2d439"}, {"url": "https://git.kernel.org/stable/c/00feb1cce93dab948a299b69753d99c681d45a0b"}], "title": "hwmon: (ltc4282) Fix reading the minimum alarm voltage", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/hwmon/ltc4282.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "338d655fe09b95a88788c6ac8b1651ca8db9ae51", "status": "affected", "version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "versionType": "git"}, {"lessThan": "08aee6d45eefc9e0b94c21bd442f47b21d64fa2c", "status": "affected", "version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "versionType": "git"}, {"lessThan": "a0668ac20feaa3fff9e0c0548556368dbbd2d439", "status": "affected", "version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "versionType": "git"}, {"lessThan": "00feb1cce93dab948a299b69753d99c681d45a0b", "status": "affected", "version": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/hwmon/ltc4282.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": "6.12.103", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (ltc4282) Fix reading the minimum alarm voltage\n\nCoverity reports an out-of-bounds access when reading the minimum alarm\nvoltage for the VGPIO channel. Add the missing return statement to fix\nthe problem."}], "id": "CVE-2026-80696", "lastModified": "2026-08-29T07:16:51.693", "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": "2026-08-28T08:16:55.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/00feb1cce93dab948a299b69753d99c681d45a0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/08aee6d45eefc9e0b94c21bd442f47b21d64fa2c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/338d655fe09b95a88788c6ac8b1651ca8db9ae51"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a0668ac20feaa3fff9e0c0548556368dbbd2d439"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cbc29538dbf7d7400f1ffc5dd5713e6a551463a0,338d655fe09b95a88788c6ac8b1651ca8db9ae51)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cbc29538dbf7d7400f1ffc5dd5713e6a551463a0,08aee6d45eefc9e0b94c21bd442f47b21d64fa2c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cbc29538dbf7d7400f1ffc5dd5713e6a551463a0,a0668ac20feaa3fff9e0c0548556368dbbd2d439)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cbc29538dbf7d7400f1ffc5dd5713e6a551463a0,00feb1cce93dab948a299b69753d99c681d45a0b)"}}], "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": "generic", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.8,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "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": "2026-08-28T11:30:06.782866+00:00", "updated": "2026-08-29T10:30:08.638573+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-125"]}