CVE-2023-52834

atl1c: Work around the DMA RX overflow issue

Description

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.

N/A

CVSS

Severity:

EPSS 0.14%

Affected: Linux Linux

References

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

Frequently Asked Questions

What is the severity of CVE-2023-52834?: CVE-2023-52834 has not yet been assigned a CVSS score.
How to fix CVE-2023-52834?: To fix CVE-2023-52834, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-52834 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-52834 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-52834?: CVE-2023-52834 affects Linux Linux, Linux Linux.

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