Description

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

PM / devfreq: Fix buffer overflow in trans_stat_show

Fix buffer overflow in trans_stat_show().

Convert simple snprintf to the more secure scnprintf with size of
PAGE_SIZE.

Add condition checking if we are exceeding PAGE_SIZE and exit early from
loop. Also add at the end a warning that we exceeded PAGE_SIZE and that
stats is disabled.

Return -EFBIG in the case where we don't have enough space to write the
full transition table.

Also document in the ABI that this function can return -EFBIG error.

Classification

CVE ID: CVE-2023-52614

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/087de000e4f8c878c81d9dd3725f00a1d292980c
https://git.kernel.org/stable/c/796d3fad8c35ee9df9027899fb90ceaeb41b958f
https://git.kernel.org/stable/c/8a7729cda2dd276d7a3994638038fb89035b6f2c
https://git.kernel.org/stable/c/a979f56aa4b93579cf0e4265ae04d7e9300fd3e8
https://git.kernel.org/stable/c/eaef4650fa2050147ca25fd7ee43bc0082e03c87
https://git.kernel.org/stable/c/08e23d05fa6dc4fc13da0ccf09defdd4bbc92ff4

Timeline