CVE-2024-38573
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.00% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/769c4f355b7962895205b86ad35617873feef9a5Patch
- https://git.kernel.org/stable/c/9a185cc5a79ba408e1c73375706630662304f618Patch
- https://git.kernel.org/stable/c/b18daa4ec727c0266de5bfc78e818d168cc4aedfPatch
- https://git.kernel.org/stable/c/cf7de25878a1f4508c69dc9f6819c21ba177dbfePatch
- https://git.kernel.org/stable/c/dfec15222529d22b15e5b0d63572a9e39570cab4Patch
- https://git.kernel.org/stable/c/f84b9b25d045e67a7eee5e73f21278c8ab06713cPatch
- https://git.kernel.org/stable/c/769c4f355b7962895205b86ad35617873feef9a5Patch
- https://git.kernel.org/stable/c/9a185cc5a79ba408e1c73375706630662304f618Patch
- https://git.kernel.org/stable/c/b18daa4ec727c0266de5bfc78e818d168cc4aedfPatch
- https://git.kernel.org/stable/c/cf7de25878a1f4508c69dc9f6819c21ba177dbfePatch
- https://git.kernel.org/stable/c/dfec15222529d22b15e5b0d63572a9e39570cab4Patch
- https://git.kernel.org/stable/c/f84b9b25d045e67a7eee5e73f21278c8ab06713cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.