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HIGH

atl1c: Work around the DMA RX overflow issue

Published May 21, 2024

Description

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

References (10)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Linux
Published May 21, 2024
Updated Aug 5, 2026
Reserved May 21, 2024
CISA Vulnrichment
Updated May 21, 2024
NVD
Status Modified
Modified Aug 4, 2026
Red Hat
Severity Low
Public date May 21, 2024