Description

In the Linux kernel, the following vulnerability has been resolved:

mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()

A warning is seen when running the latest kernel on a BlueField SOC:
[251.512704] ------------[ cut here ]------------
[251.512711] invalid sysfs_emit: buf:0000000003aa32ae
[251.512720] WARNING: CPU: 1 PID: 705264 at fs/sysfs/file.c:767 sysfs_emit+0xac/0xc8

The warning is triggered because the mlxbf-bootctl driver invokes
"sysfs_emit()" with a buffer pointer that is not aligned to the
start of the page. The driver should instead use "sysfs_emit_at()"
to support non-zero offsets into the destination buffer.

Classification

CVE ID: CVE-2025-37866

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 4.93% (scored less or equal to compared to others)

EPSS Date: 2025-06-07 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-37866
https://git.kernel.org/stable/c/5e1dcc5bfd7a2896178c604bc69d6ab9650967da
https://git.kernel.org/stable/c/b129005ddfc0e6daf04a6d3b928a9e474f9b3918

Timeline