CVE-2023-52511

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux345980a3a5e5e1c99fc621e2ce878fb150ad2287 < ff05ed4ae214011464a0156f05cac1b0b46b5fbcaffected
LinuxLinux345980a3a5e5e1c99fc621e2ce878fb150ad2287 < e15bb292b24630ee832bfc7fd616bd72c7682bbbaffected
LinuxLinux345980a3a5e5e1c99fc621e2ce878fb150ad2287 < b3c21c9c7289692f4019f163c3b06d8bdf78b355affected
LinuxLinux345980a3a5e5e1c99fc621e2ce878fb150ad2287 < 171f8a49f212e87a8b04087568e1b3d132e36a18affected
LinuxLinux5.11affected
LinuxLinux0 < 5.11unaffected
LinuxLinux5.15.134 <= 5.15.*unaffected
LinuxLinux6.1.56 <= 6.1.*unaffected
LinuxLinux6.5.6 <= 6.5.*unaffected
LinuxLinux6.6 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References