CVE-2024-42279

In the Linux kernel, the following vulnerability has been resolved: spi: microchip-core: ensure TX and RX FIFOs are empty at start of a transfer While transmitting with rx_len == 0, the RX FIFO is not going to be emptied in the interrupt handler. A subsequent transfer could then read crap from the previous transfer out of the RX FIFO into the start RX buffer. The core provides a register that will empty the RX and TX FIFOs, so do that before each transfer.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3feda3677e8bbe833c3a62a4091377a08f015b80	Patch
https://git.kernel.org/stable/c/45e03d35229b680b79dfea1103a1f2f07d0b5d75	Patch
https://git.kernel.org/stable/c/950375a0ba7d6c82ea5b5a44dd48a9e41fa45826
https://git.kernel.org/stable/c/9cf71eb0faef4bff01df4264841b8465382d7927	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

30 Oct 2026, 13:17

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/950375a0ba7d6c82ea5b5a44dd48a9e41fa45826 -

Information

Published : 2024-08-17 09:15

Updated : 2026-10-30 13:17

NVD link : CVE-2024-42279

Mitre link : CVE-2024-42279

CVE.ORG link : CVE-2024-42279

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

{"id": "CVE-2024-42279", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-42279", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:11:42.802690Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "9ac8d17694b66d54b13e9718b25c14ca36dbebbd", "lessThan": "950375a0ba7d6c82ea5b5a44dd48a9e41fa45826", "versionType": "git"}, {"status": "affected", "version": "9ac8d17694b66d54b13e9718b25c14ca36dbebbd", "lessThan": "3feda3677e8bbe833c3a62a4091377a08f015b80", "versionType": "git"}, {"status": "affected", "version": "9ac8d17694b66d54b13e9718b25c14ca36dbebbd", "lessThan": "45e03d35229b680b79dfea1103a1f2f07d0b5d75", "versionType": "git"}, {"status": "affected", "version": "9ac8d17694b66d54b13e9718b25c14ca36dbebbd", "lessThan": "9cf71eb0faef4bff01df4264841b8465382d7927", "versionType": "git"}], "programFiles": ["drivers/spi/spi-microchip-core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"status": "unaffected", "version": "0", "lessThan": "6.0", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.44", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.3", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/spi/spi-microchip-core.c"], "defaultStatus": "affected"}]}], "published": "2024-08-17T09:15:08.880", "references": [{"url": "https://git.kernel.org/stable/c/3feda3677e8bbe833c3a62a4091377a08f015b80", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/45e03d35229b680b79dfea1103a1f2f07d0b5d75", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/950375a0ba7d6c82ea5b5a44dd48a9e41fa45826", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9cf71eb0faef4bff01df4264841b8465382d7927", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: microchip-core: ensure TX and RX FIFOs are empty at start of a transfer\n\nWhile transmitting with rx_len == 0, the RX FIFO is not going to be\nemptied in the interrupt handler. A subsequent transfer could then\nread crap from the previous transfer out of the RX FIFO into the\nstart RX buffer. The core provides a register that will empty the RX and\nTX FIFOs, so do that before each transfer."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: microchip-core: aseg\u00farese de que los FIFO de TX y RX est\u00e9n vac\u00edos al inicio de una transferencia. Mientras se transmite con rx_len == 0, el FIFO de RX no se vaciar\u00e1 en la interrupci\u00f3n entrenador de animales. Una transferencia posterior podr\u00eda leer basura de la transferencia anterior desde el RX FIFO al b\u00fafer de inicio de RX. El n\u00facleo proporciona un registro que vaciar\u00e1 los FIFO RX y TX, as\u00ed que h\u00e1galo antes de cada transferencia."}], "lastModified": "2026-10-30T13:17:33.150", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CE117457-3A46-40BF-AE08-482CBF310F21", "versionEndExcluding": "6.6.44", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92D388F2-1EAF-4CFA-AC06-5B26D762EA7D", "versionEndExcluding": "6.10.3", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}