CVE-2024-42279: linux kernel — Fix

Description

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.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.0 — 6.6.44
linux	linux_kernel	6.7 — 6.10.3

References

Advisories & Patches

https://git.kernel.org/stable/c/3feda3677e8bbe833c3a62a4091377a08f015b80 https://git.kernel.org/stable/c/45e03d35229b680b79dfea1103a1f2f07d0b5d75 https://git.kernel.org/stable/c/9cf71eb0faef4bff01df4264841b8465382d7927

Frequently Asked Questions

What is CVE-2024-42279? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-42279? +

CVE-2024-42279 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-42279? +

CVE-2024-42279 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-42279? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-42279