CVE-2023-53664 PUBLISHED

OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate()

Assigner: Linux
Reserved: 07.10.2025 Published: 07.10.2025 Updated: 07.10.2025

In the Linux kernel, the following vulnerability has been resolved:

OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate()

"opp" pointer is dereferenced before the IS_ERR_OR_NULL() check. Fix it by removing the dereference to cache opp_table and dereference it directly where opp_table is used.

This fixes the following smatch warning:

drivers/opp/core.c:232 dev_pm_opp_get_required_pstate() warn: variable dereferenced before IS_ERR check 'opp' (see line 230)

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 84cb7ff35fcf7c0b552f553a3f2db9c3e92fc707 to 25130b27e0352acb83e91c467853eb9afad3b644 (excl.)
  • affected from 84cb7ff35fcf7c0b552f553a3f2db9c3e92fc707 to 7ddd8deb1c3c0363a7e14fafb5df26e2089a69a5 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.5 is affected
  • unaffected from 0 to 6.5 (excl.)
  • unaffected from 6.5.3 to 6.5.* (incl.)
  • unaffected from 6.6 to * (incl.)

References