cppc_cpufreq: Fix possible null pointer dereference
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.0%
exploitation probability
1.0%top 40% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
cppc_cpufreq: Fix possible null pointer dereference
cppc_cpufreq_get_rate() and hisi_cppc_cpufreq_get_rate() can be called from
different places with various parameters. So cpufreq_cpu_get() can return
null as 'policy' in some circumstances.
Fix this bug by adding null return check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/769c4f355b7962895205b86ad35617873feef9a5https://git.kernel.org/stable/c/9a185cc5a79ba408e1c73375706630662304f618https://git.kernel.org/stable/c/b18daa4ec727c0266de5bfc78e818d168cc4aedfhttps://git.kernel.org/stable/c/cf7de25878a1f4508c69dc9f6819c21ba177dbfehttps://git.kernel.org/stable/c/dfec15222529d22b15e5b0d63572a9e39570cab4https://git.kernel.org/stable/c/f84b9b25d045e67a7eee5e73f21278c8ab06713c