Answer in brief
CVE-2024-36477 records a High severity (CVSS 7.8) vulnerability in tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a86a42ac2bd652fdc7836a9d880c306a2485c142 <1547183852dcdfcc25878db7dd3620509217b0cd || >=a86a42ac2bd652fdc7836a9d880c306a2485c142 <de13c56f99477b56980c7e00b09c776d16b7563d || >=a86a42ac2bd652fdc7836a9d880c306a2485c142 <195aba96b854dd664768f382cd1db375d8181f88 | 1547183852dcdfcc25878db7dd3620509217b0cd, de13c56f99477b56980c7e00b09c776d16b7563d, 195aba96b854dd664768f382cd1db375d8181f88 |
| Linux/Linuxgeneric | 6.6 | Not reported |
Published upstream
Jun 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.