Description
In the Linux kernel, the following vulnerability has been resolved: spi: sun6i: reduce DMA RX transfer width to single byte Through empirical testing it has been determined that sometimes RX SPI transfers with DMA enabled return corrupted data. This is down to single or even multiple bytes lost during DMA transfer from SPI peripheral to memory. It seems the RX FIFO within the SPI peripheral can become confused when performing bus read accesses wider than a single byte to it during an active SPI transfer. This patch reduces the width of individual DMA read accesses to the RX FIFO to a single byte to mitigate that issue.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
345980a3a5e5e1c99fc621e2ce878fb150ad2287 to < ff05ed4ae214011464a0156f05cac1b0b46b5fbcaffected345980a3a5e5e1c99fc621e2ce878fb150ad2287 to < e15bb292b24630ee832bfc7fd616bd72c7682bbbaffected345980a3a5e5e1c99fc621e2ce878fb150ad2287 to < b3c21c9c7289692f4019f163c3b06d8bdf78b355affected345980a3a5e5e1c99fc621e2ce878fb150ad2287 to < 171f8a49f212e87a8b04087568e1b3d132e36a18affected
Linux Linux
Default version status: affected
5.11affected0 to < 5.11unaffected5.15.134 to ≤ 5.15.*unaffected6.1.56 to ≤ 6.1.*unaffected6.5.6 to ≤ 6.5.*unaffected6.6 to ≤ *unaffected