CVE-2024-38573: cppc_cpufreq: Fix possible null pointer dereference
First published: Wed Jun 19 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.15.161 | 5.15.161 |
| redhat/kernel | <6.1.93 | 6.1.93 |
| redhat/kernel | <6.6.33 | 6.6.33 |
| redhat/kernel | <6.8.12 | 6.8.12 |
| redhat/kernel | <6.9.3 | 6.9.3 |
| redhat/kernel | <6.10 | 6.10 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.3-1 |
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Reference Links
- https://git.kernel.org/stable/c/769c4f355b7962895205b86ad35617873feef9a5
- https://git.kernel.org/stable/c/9a185cc5a79ba408e1c73375706630662304f618
- https://git.kernel.org/stable/c/b18daa4ec727c0266de5bfc78e818d168cc4aedf
- https://git.kernel.org/stable/c/cf7de25878a1f4508c69dc9f6819c21ba177dbfe
- https://git.kernel.org/stable/c/dfec15222529d22b15e5b0d63572a9e39570cab4
- https://git.kernel.org/stable/c/f84b9b25d045e67a7eee5e73f21278c8ab06713c
- https://launchpad.net/bugs/cve/CVE-2024-38573
- https://git.kernel.org/linus/cf7de25878a1f4508c69dc9f6819c21ba177dbfe
- https://security-tracker.debian.org/tracker/CVE-2024-38573
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38573
- https://nvd.nist.gov/vuln/detail/CVE-2024-38573
- https://ubuntu.com/security/CVE-2024-38573
- https://access.redhat.com/security/cve/CVE-2024-38573
- https://lore.kernel.org/linux-cve-announce/2024061957-CVE-2024-38573-d4b6@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:5102
- https://access.redhat.com/errata/RHSA-2024:5101
- https://access.redhat.com/errata/RHSA-2024:6745
- https://access.redhat.com/errata/RHSA-2024:6744
- https://access.redhat.com/errata/RHSA-2024:6993
- https://access.redhat.com/errata/RHSA-2024:6997
- https://bugzilla.redhat.com/show_bug.cgi?id=2293420
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