Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw() The get_pd_power_uw() function can crash with a NULL pointer dereference when em_cpu_get() returns NULL. This occurs when a CPU becomes impossible during runtime, causing get_cpu_device() to return NULL, which propagates through em_cpu_get() and leads to a crash when em_span_cpus() dereferences the NULL pointer. Add a NULL check after em_cpu_get() and return 0 if unavailable, matching the existing fallback behavior in __dtpm_cpu_setup(). [ rjw: Drop an excess empty code line ]
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.16, < 6.1.148 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/27914f2b795e2b58e9506f281dcdd98fef09d3c2Patch
- https://git.kernel.org/stable/c/27e0318f0ea69fcfa32228847debc384ade14578Patch
- https://git.kernel.org/stable/c/2fd001a0075ac01dc64a28a8e21226b3d989a91dPatch
- https://git.kernel.org/stable/c/46dc57406887dd02565cb264224194a6776d882bPatch
- https://git.kernel.org/stable/c/8374ac7d69a57d737e701a851ffe980a0d27d3adPatch
- https://git.kernel.org/stable/c/c6ec27091cf5ac05094c1fe3a6ce914cf711a37cPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
FAQ
What is CVE-2025-38610?
CVE-2025-38610 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw() The get_pd_power_uw() function can crash with a NULL pointer...
How severe is CVE-2025-38610?
CVE-2025-38610 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-38610?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.