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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-38610

powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw()

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Status
Published
Published
Updated
Assigning organization
Linux

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 ]

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • eb82bace893169b319c563b7f813c58a0a5a9f76 to < 27914f2b795e2b58e9506f281dcdd98fef09d3c2affected
  • eb82bace893169b319c563b7f813c58a0a5a9f76 to < c6ec27091cf5ac05094c1fe3a6ce914cf711a37caffected
  • eb82bace893169b319c563b7f813c58a0a5a9f76 to < 8374ac7d69a57d737e701a851ffe980a0d27d3adaffected
  • eb82bace893169b319c563b7f813c58a0a5a9f76 to < 27e0318f0ea69fcfa32228847debc384ade14578affected
  • eb82bace893169b319c563b7f813c58a0a5a9f76 to < 2fd001a0075ac01dc64a28a8e21226b3d989a91daffected
  • eb82bace893169b319c563b7f813c58a0a5a9f76 to < 46dc57406887dd02565cb264224194a6776d882baffected

Linux Linux

Default version status: affected

  • 5.16affected
  • 0 to < 5.16unaffected
  • 6.1.148 to ≤ 6.1.*unaffected
  • 6.6.102 to ≤ 6.6.*unaffected
  • 6.12.42 to ≤ 6.12.*unaffected
  • 6.15.10 to ≤ 6.15.*unaffected
  • 6.16.1 to ≤ 6.16.*unaffected
  • 6.17 to ≤ *unaffected

References