CVE-2024-38573: cppc_cpufreq: Fix possible null pointer dereference
Noroxi assessment
Priority: Monitor (action score 30/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 62.9% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: Linux Linux 769c4f355b7962895205b86ad35617873feef9a5, 9a185cc5a79ba408e1c73375706630662304f618, b18daa4ec727c0266de5bfc78e818d168cc4aedf.
Low priority for now. Upgrade to Linux Linux 769c4f355b7962895205b86ad35617873feef9a5, 9a185cc5a79ba408e1c73375706630662304f618, b18daa4ec727c0266de5bfc78e818d168cc4aedf or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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.
- Published
- Jun 19, 2024
- Updated
- Jun 17, 2026
- EPSS
- 1.0% · 62th percentile
- CWE
- CWE-476
Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.0%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel5.11 and later · before 5.15.161
- linux linux kernel5.16 and later · before 6.1.93
- linux linux kernel6.2 and later · before 6.6.33
- linux linux kernel6.7 and later · before 6.8.12
- linux linux kernel6.9 and later · before 6.9.3
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 5.11affected
- a28b2bfc099c6b9caa6ef697660408e076a32019 and later · before 9a185cc5a79ba408e1c73375706630662304f618affected · git
- a28b2bfc099c6b9caa6ef697660408e076a32019 and later · before 769c4f355b7962895205b86ad35617873feef9a5affected · git
- a28b2bfc099c6b9caa6ef697660408e076a32019 and later · before f84b9b25d045e67a7eee5e73f21278c8ab06713caffected · git
- a28b2bfc099c6b9caa6ef697660408e076a32019 and later · before b18daa4ec727c0266de5bfc78e818d168cc4aedfaffected · git
- a28b2bfc099c6b9caa6ef697660408e076a32019 and later · before dfec15222529d22b15e5b0d63572a9e39570cab4affected · git
- a28b2bfc099c6b9caa6ef697660408e076a32019 and later · before cf7de25878a1f4508c69dc9f6819c21ba177dbfeaffected · git
- before 5.11not affected · semver
- 5.15.161 and later · up to and including 5.15.*not affected · semver
- 6.1.93 and later · up to and including 6.1.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:9 | bpftool | before 7.3.0-427.37.1.el9_4 | 7.3.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-core | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-core | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-devel | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-modules | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-devel | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-devel-matched | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-modules | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-modules-core | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-64k-modules-extra | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-abi-stablelists | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-core | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-cross-headers | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-debug | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-debug-core | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-debug-devel | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-debug-devel-matched | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
| AlmaLinux:9 | kernel-debug-modules | before 5.14.0-427.37.1.el9_4 | 5.14.0-427.37.1.el9_4 |
+96
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
Published before and after this one in the same product
- ← EarlierCVE-2024-38571Jun 19, 2024 · thermal/drivers/tsens: Fix null pointer dereference22Monitor
- ← EarlierCVE-2024-38572Jun 19, 2024 · wifi: ath12k: fix out-of-bound access of qmi_invoke_handler()28Monitor
- Later →CVE-2024-38574Jun 19, 2024 · libbpf: Prevent null-pointer dereference when prog to load has no BTF22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 769c4f355b7962895205b86ad35617873feef9a5 | Vendor (CNA) |
| Linux Linux | 9a185cc5a79ba408e1c73375706630662304f618 | Vendor (CNA) |
| Linux Linux | b18daa4ec727c0266de5bfc78e818d168cc4aedf | Vendor (CNA) |
| Linux Linux | cf7de25878a1f4508c69dc9f6819c21ba177dbfe | Vendor (CNA) |
| Linux Linux | dfec15222529d22b15e5b0d63572a9e39570cab4 | Vendor (CNA) |
| Linux Linux | f84b9b25d045e67a7eee5e73f21278c8ab06713c | Vendor (CNA) |
| almalinux:bpftool | 7.3.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-core | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-core | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-devel | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-devel-matched | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules-core | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules-extra | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:kernel-64k-devel | 5.14.0-427.37.1.el9_4 · AlmaLinux:9 | Package registry (OSV) |
| debian:linux | 6.1.94-1 · Debian:12 | Package registry (OSV) |
| red hat:bpftool-debuginfo | 0:7.0.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-debuginfo | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-devel | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debug-devel-matched | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-debuginfo | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-devel | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-64k-devel-matched | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debug-devel-matched | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:5.14.0-284.84.1.el9_2 · Red Hat:rhel_eus:9.2::appstream | Package registry (OSV) |
+1
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (5 more)Show less
- git.kernel.org/stable/c/9a185cc5a79ba408e1c73375706630662304f618
- git.kernel.org/stable/c/b18daa4ec727c0266de5bfc78e818d168cc4aedf
- git.kernel.org/stable/c/cf7de25878a1f4508c69dc9f6819c21ba177dbfe
- git.kernel.org/stable/c/dfec15222529d22b15e5b0d63572a9e39570cab4
- git.kernel.org/stable/c/f84b9b25d045e67a7eee5e73f21278c8ab06713c
Vendor advisories and official records. Exploit/PoC links are deliberately left out.