Advisory Published
Updated

CVE-2024-42279: spi: microchip-core: ensure TX and RX FIFOs are empty at start of a transfer

First published: Sat Aug 17 2024(Updated: )

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.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
debian/linux<=6.1.115-1<=6.1.119-1
5.10.223-1
5.10.226-1
6.11.10-1
6.12.5-1

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