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CVE-2024-36477

tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected a86a42ac2bd652fdc7836a9d880c306a2485c142 before 1547183852dcdfcc25878db7dd3620509217b0cd; affected a86a42ac2bd652fdc7836a9d880c306a2485c142 before de13c56f99477b56980c7e00b09c776d16b7563d; affected a86a42ac2bd652fdc7836a9d880c306a2485c142 before 195aba96b854dd664768f382cd1db375d8181f88
Linux / Linuxaffected 6.6; unaffected 0 before 6.6; unaffected 6.6.33 through 6.6.*; unaffected 6.9.4 through 6.9.*; unaffected 6.10 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.