CVE-2023-52469
drivers/amd/pm: fix a use-after-free in kv_parse_power_table
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Description
In the Linux kernel, the following vulnerability has been resolved: drivers/amd/pm: fix a use-after-free in kv_parse_power_table When ps allocated by kzalloc equals to NULL, kv_parse_power_table frees adev->pm.dpm.ps that allocated before. However, after the control flow goes through the following call chains: kv_parse_power_table |-> kv_dpm_init |-> kv_dpm_sw_init |-> kv_dpm_fini The adev->pm.dpm.ps is used in the for loop of kv_dpm_fini after its first free in kv_parse_power_table and causes a use-after-free bug.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/28dd788382c43b330480f57cd34cde0840896743
- https://git.kernel.org/stable/c/3426f059eacc33ecc676b0d66539297e1cfafd02
- https://git.kernel.org/stable/c/35fa2394d26e919f63600ce631e6aefc95ec2706
- https://git.kernel.org/stable/c/520e213a0b97b64735a13950e9371e0a5d7a5dc3
- https://git.kernel.org/stable/c/8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e
References (10)
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