mtd: rawnand: gpmi: don't leak PM reference in error path

CVE-2022-48778

What is CVE-2022-48778?

A vulnerability has been identified in the Linux kernel concerning memory management during error handling for the rawnand GPIMI subsystem. This issue arises when the function gpmi_nfc_apply_timings() encounters an error, which leads to a failure to properly decrement the PM runtime usage counter. Failure to address this flaw may lead to unintended resource retention, negatively impacting system performance and stability. System administrators are advised to apply the latest updates to mitigate any potential risks associated with this vulnerability.

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References