CVE-2023-52614
PM / devfreq: Fix buffer overflow in trans_stat_show
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/087de000e4f8c878c81d9dd3725f00a1d292980c
- https://git.kernel.org/stable/c/08e23d05fa6dc4fc13da0ccf09defdd4bbc92ff4
- https://git.kernel.org/stable/c/796d3fad8c35ee9df9027899fb90ceaeb41b958f
- https://git.kernel.org/stable/c/8a7729cda2dd276d7a3994638038fb89035b6f2c
- https://git.kernel.org/stable/c/a979f56aa4b93579cf0e4265ae04d7e9300fd3e8
References (8)
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