CVE-2023-52834

In the Linux kernel, the following vulnerability has been resolved: atl1c: Work around the DMA RX overflow issue This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue"). The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester. Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address. Tested on AR8131 on Acer 4540.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/32f08b7b430ee01ec47d730f961a3306c1c7b6fb	Patch
https://git.kernel.org/stable/c/54a6152da4993ec8e4b53dc3cf577f5a2c829afa	Patch
https://git.kernel.org/stable/c/57e44ff9c2c9747b2b1a53556810b0e5192655d6	Patch
https://git.kernel.org/stable/c/86565682e9053e5deb128193ea9e88531bbae9cf	Patch
https://git.kernel.org/stable/c/c29a89b23f67ee592f4dee61f9d7efbf86d60315	Patch
https://git.kernel.org/stable/c/32f08b7b430ee01ec47d730f961a3306c1c7b6fb	Patch
https://git.kernel.org/stable/c/54a6152da4993ec8e4b53dc3cf577f5a2c829afa	Patch
https://git.kernel.org/stable/c/57e44ff9c2c9747b2b1a53556810b0e5192655d6	Patch
https://git.kernel.org/stable/c/86565682e9053e5deb128193ea9e88531bbae9cf	Patch
https://git.kernel.org/stable/c/c29a89b23f67ee592f4dee61f9d7efbf86d60315	Patch

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2024-05-21 16:15

Updated : 2026-08-04 10:18

NVD link : CVE-2023-52834

Mitre link : CVE-2023-52834

CVE.ORG link : CVE-2023-52834

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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"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\natl1c: Work around the DMA RX overflow issue\n\nThis is based on alx driver commit 881d0327db37 (\"net: alx: Work around\nthe DMA RX overflow issue\").\n\nThe alx and atl1c drivers had RX overflow error which was why a custom\nallocator was created to avoid certain addresses. The simpler workaround\nthen created for alx driver, but not for atl1c due to lack of tester.\n\nInstead of using a custom allocator, check the allocated skb address and\nuse skb_reserve() to move away from problematic 0x...fc0 address.\n\nTested on AR8131 on Acer 4540."}, {"lang": "es", "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: atl1c:workaround al problema de desbordamiento de DMA RX. Esto se basa en la confirmaci\u00f3n del controlador alx 881d0327db37 (\"net: alx: soluci\u00f3n alternativa al problema de desbordamiento de DMA RX\"). Los controladores alx y atl1c ten\u00edan un error de desbordamiento de RX, por lo que se cre\u00f3 un asignador personalizado para evitar ciertas direcciones. Luego se cre\u00f3 la soluci\u00f3n m\u00e1s simple para el controlador alx, pero no para atl1c debido a la falta de un probador. En lugar de utilizar un asignador personalizado, verifique la direcci\u00f3n skb asignada y use skb_reserve() para alejarse de la direcci\u00f3n problem\u00e1tica 0x...fc0. Probado en AR8131 en Acer 4540."}], "lastModified": "2026-08-04T10:18:45.217", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "946A5BB4-D1C5-4C8D-962C-9C300A2CAA80", "versionEndExcluding": "5.15.140"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8D7C884A-CAA2-4EA2-9FEB-5CE776D7B05F", "versionEndExcluding": "6.1.64", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "674C4F82-C336-4B49-BF64-1DE422E889C4", "versionEndExcluding": "6.5.13", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B58252FA-A49C-411F-9B28-DC5FE44BC5A0", "versionEndExcluding": "6.6.3", "versionStartIncluding": "6.6"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}