UBUNTU-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.
02 / AFFECTED SOFTWARE
Affected packages
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13 explicit affected versions
7 explicit affected versions
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26 explicit affected versions
37 explicit affected versions
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11 explicit affected versions
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7 explicit affected versions
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13 explicit affected versions
43 explicit affected versions
10 explicit affected versions
8 explicit affected versions
12 explicit affected versions
14 explicit affected versions
4 explicit affected versions
11 explicit affected versions
1 explicit affected versions
10 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/9cf71eb0faef4bff01df4264841b8465382d7927
- https://git.kernel.org/stable/c/3feda3677e8bbe833c3a62a4091377a08f015b80
- https://git.kernel.org/stable/c/45e03d35229b680b79dfea1103a1f2f07d0b5d75
- https://git.kernel.org/stable/c/9cf71eb0faef4bff01df4264841b8465382d7927
- https://ubuntu.com/security/CVE-2024-42279
- https://ubuntu.com/security/notices/USN-7154-1
- https://ubuntu.com/security/notices/USN-7154-2
- https://ubuntu.com/security/notices/USN-7155-1
- https://ubuntu.com/security/notices/USN-7156-1
- https://ubuntu.com/security/notices/USN-7196-1
- https://www.cve.org/CVERecord?id=CVE-2024-42279