CVE-2026-89992high

CVE-2026-89992: high-severity vulnerability in Linux

cpuidle: dt_idle_genpd: kfree() the original name allocation

Published

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.4epss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved: cpuidle: dt_idle_genpd: kfree() the original name allocation dt_idle_pd_alloc() kasprintf()s the full node path, then points pd->name at kbasename() of that string. dt_idle_pd_free() kfree()s pd->name, which is no longer the start of the allocation. Copy the basename instead.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/09d002c8fb0261d35ce9d8a705de5db034ee90b8https://git.kernel.org/stable/c/1312ae33b91430ec99e69cd3d47f0e50a4ebf54bhttps://git.kernel.org/stable/c/2b0ac85512b7f67479127b2713254490662eb13dhttps://git.kernel.org/stable/c/3394c7ba23336bdb7ece29127130fd01731d42d8https://git.kernel.org/stable/c/a38caa9ed0d5c61c17d88393b14b292199289c1fhttps://git.kernel.org/stable/c/b519dfce1998c323e54a56f911cf708d9ba0e076