CVE-2024-42279

Summary

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

spi: microchip-core: ensure TX and RX FIFOs are empty at start of a transfer

While transmitting with rx_len == 0, the RX FIFO is not going to be emptied in the interrupt handler. A subsequent transfer could then read crap from the previous transfer out of the RX FIFO into the start RX buffer. The core provides a register that will empty the RX and TX FIFOs, so do that before each transfer.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9ac8d17694b66d54b13e9718b25c14ca36dbebbd < 3feda3677e8bbe833c3a62a4091377a08f015b80affected
LinuxLinux9ac8d17694b66d54b13e9718b25c14ca36dbebbd < 45e03d35229b680b79dfea1103a1f2f07d0b5d75affected
LinuxLinux9ac8d17694b66d54b13e9718b25c14ca36dbebbd < 9cf71eb0faef4bff01df4264841b8465382d7927affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.6.44 <= 6.6.*unaffected
LinuxLinux6.10.3 <= 6.10.*unaffected
LinuxLinux6.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References