Use-After-Free Vulnerability in Linux Kernel's SCSI LPFC Driver

CVE-2023-53282

What is CVE-2023-53282?

A use-after-free vulnerability was identified in the SCSI LPFC driver of the Linux kernel, manifesting during the sysfs firmware write operation. This issue arises when the routine attempts to access a memory reference that has already been released, leading to potential memory access violations. The vulnerability was triggered within the lpfc_wr_object() function, where internal mailbox memory was referenced after its deallocation. This flaw could lead to unintended behaviors within the driver and compromises system stability. A fix has been implemented to ensure that memory cleanup occurs at the end of relevant routines, preventing such access violations.

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