Description

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: fsl-qdma: fix SoC may hang on 16 byte unaligned read

There is chip (ls1028a) errata:

The SoC may hang on 16 byte unaligned read transactions by QDMA.

Unaligned read transactions initiated by QDMA may stall in the NOC
(Network On-Chip), causing a deadlock condition. Stalled transactions will
trigger completion timeouts in PCIe controller.

Workaround:
Enable prefetch by setting the source descriptor prefetchable bit
( SD[PF] = 1 ).

Implement this workaround.

Classification

CVE ID: CVE-2024-26790

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 12.41% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/518d78b4fac68cac29a263554d7f3b19da99d0da
https://git.kernel.org/stable/c/bb3a06e9b9a30e33d96aadc0e077be095a4f8580
https://git.kernel.org/stable/c/106c1ac953a66556ec77456c46e818208d3a9bce
https://git.kernel.org/stable/c/237ecf1afe6c22534fa43abdf2bf0b0f52de0aaa
https://git.kernel.org/stable/c/5b696e9c388251f1c7373be92293769a489fd367
https://git.kernel.org/stable/c/ad2f8920c314e0a2d9e984fc94b729eca3cda471
https://git.kernel.org/stable/c/9d739bccf261dd93ec1babf82f5c5d71dd4caa3e

Timeline