cpufreq: exit() callback is optional
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 16 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: cpufreq: exit() callback is optional The exit() callback is optional and shouldn't be called without checking a valid pointer first. Also, we must clear freq_table pointer even if the exit() callback isn't present.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.1 and later | 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 5.1 and later Fixed in 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.1 to before 5.4.278; 5.5 to before 5.10.219; 5.11 to before 5.15.161; 5.16 to before 6.1.93; 6.2 to before 6.6.33; 6.7 to before 6.8.12; 6.9 to before 6.9.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.1 to before 5.4.278; 5.5 to before 5.10.219; 5.11 to before 5.15.161; 5.16 to before 6.1.93; 6.2 to before 6.6.33; 6.7 to before 6.8.12; 6.9 to before 6.9.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.278, 5.10.219, 5.15.161, 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10
Red Hat 6 advisories
- RHSA-2024:6997 Released 2024-09-24 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.37.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.37.1.el9_4, kernel-64k-devel-5.14.0-427.37.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.37.1.el9_4, kernel-5.14.0-427.37.1.el9_4, kernel-64k-5.14.0-427.37.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.37.1.el9_4, libperf-5.14.0-427.37.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.37.1.el9_4, kernel-rt-core-5.14.0-427.37.1.el9_4, kernel-rt-debug-5.14.0-427.37.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.37.1.el9_4, kernel-rt-core-5.14.0-427.37.1.el9_4, kernel-rt-debug-5.14.0-427.37.1.el9_4 +9
- RHSA-2024:6993 Released 2024-09-24 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.74.1.el8_8
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.74.1.el8_8, kernel-4.18.0-477.74.1.el8_8, kernel-abi-stablelists-4.18.0-477.74.1.el8_8 +19
- RHSA-2024:6744 Released 2024-09-18 · Red Hat rating Moderatekernel security update
- Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.84.1.el9_2
- Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.84.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.84.1.el9_2, kernel-64k-devel-5.14.0-284.84.1.el9_2 +9
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.84.1.el9_2, kernel-5.14.0-284.84.1.el9_2, kernel-64k-5.14.0-284.84.1.el9_2 +29
Show 3 more Red Hat advisories
- RHSA-2024:6745 Released 2024-09-18 · Red Hat rating Moderatekernel-rt security update
- Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-core-5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-debug-5.14.0-284.84.1.rt14.369.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-core-5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-debug-5.14.0-284.84.1.rt14.369.el9_2 +11
- RHSA-2024:5101 Released 2024-08-08 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.16.1.el8_10, kernel-4.18.0-553.16.1.el8_10, kernel-abi-stablelists-4.18.0-553.16.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.16.1.el8_10
- RHSA-2024:5102 Released 2024-08-08 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder EUS (v.8.8) | Fixed | RHSA-2024:6993 |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2024:6744 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:6997 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:6744 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:5101 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:6997 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2024:6993 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:6744 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:5101 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:6997 |
| Red Hat Enterprise Linux NFV (v. 8) | Fixed | RHSA-2024:5102 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2024:6997 |
| Red Hat Enterprise Linux RT (v. 8) | Fixed | RHSA-2024:5102 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2024:6997 |
| Red Hat Enterprise Linux Real Time EUS (v.9.2) | Fixed | RHSA-2024:6745 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) | Fixed | RHSA-2024:6745 |
Not affected: 1 product
- Red Hat Enterprise Linux AppStream EUS (v.9.2)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-38615
- 2026-10-03 Alias added: GHSA-54w4-35xc-2796
References
Patch 8
- https://git.kernel.org/stable/c/2d730b465e377396d2a09a53524b96b111f7ccb6
- https://git.kernel.org/stable/c/dfc56ff5ec9904c008e9376d90a6d7e2d2bec4d3
- https://git.kernel.org/stable/c/35db5e76d5e9f752476df5fa0b9018a2398b0378
- https://git.kernel.org/stable/c/8bc9546805e572ad101681437a49939f28777273
- https://git.kernel.org/stable/c/3e99f060cfd2e36504d62c9132b453ade5027e1c
- https://git.kernel.org/stable/c/ae37ebca325097d773d7bb6ec069123b30772872
- https://git.kernel.org/stable/c/a8204d1b6ff762d2171d365c2c8560285d0a233d
- https://git.kernel.org/stable/c/b8f85833c05730d631576008daaa34096bc7f3ce
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Sources
- CVE-2024-38615 · CVE Program
- CVE-2024-38615 · NVD
- FIRST EPSS
- GHSA-54w4-35xc-2796 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-38615 · Red Hat security data · CC BY 4.0
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