CVE-2023-52614

PM / devfreq: Fix buffer overflow in trans_stat_show

State: Published
Severity: 7.8 High
Published: Mar 18, 2024
Updated: Oct 15, 2026
Reserved: Mar 6, 2024

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 087de000e4f8c878c81d9dd3725f00a1d292980cAffected e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 796d3fad8c35ee9df9027899fb90ceaeb41b958fAffected e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 8a7729cda2dd276d7a3994638038fb89035b6f2cAffected e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before a979f56aa4b93579cf0e4265ae04d7e9300fd3e8Affected e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before eaef4650fa2050147ca25fd7ee43bc0082e03c87Affected e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 08e23d05fa6dc4fc13da0ccf09defdd4bbc92ff4Affected
LinuxLinux	3.8Affected before 3.8Not affected 5.10.216 through 5.10.Not affected 5.15.149 through 5.15.Not affected 6.1.76 through 6.1.Not affected 6.6.15 through 6.6.Not affected 6.7.3 through 6.7.*Not affected 6.8 and laterNot affected

Product

Versions

LinuxLinux

e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 087de000e4f8c878c81d9dd3725f00a1d292980cAffected
e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 796d3fad8c35ee9df9027899fb90ceaeb41b958fAffected
e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 8a7729cda2dd276d7a3994638038fb89035b6f2cAffected
e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before a979f56aa4b93579cf0e4265ae04d7e9300fd3e8Affected
e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before eaef4650fa2050147ca25fd7ee43bc0082e03c87Affected
e552bbaf5b987f57c43e6981a452b8a3c700b1ae to before 08e23d05fa6dc4fc13da0ccf09defdd4bbc92ff4Affected

LinuxLinux

3.8Affected
before 3.8Not affected
5.10.216 through 5.10.*Not affected
5.15.149 through 5.15.*Not affected
6.1.76 through 6.1.*Not affected
6.6.15 through 6.6.*Not affected
6.7.3 through 6.7.*Not affected
6.8 and laterNot affected

References

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