CVE-2024-36477: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer The TPM SPI transfer mechanism uses MAX_SPI_FRAMESIZE for computing the maximum transfer length and the size of the transfer buffer. As such, it does not account for the 4 bytes of header that prepends the SPI data frame. This can result in out-of-bounds accesses and was confirmed with KASAN. Introduce SPI_HDRSIZE to account for the header and use to allocate the transfer buffer.

Affected products

• Linux Linux Kernel: after 6.6, before 6.6.33 (fixed in 6.6.33); after 6.7, before 6.9.4 (fixed in 6.9.4); version 6.10 only

Published 2024-06-21. Last modified 2026-08-04.