CVE-2024-56623

Summary

CVE-2024-56623 is a vulnerability affecting the Linux kernel that has been addressed. The issue was related to the scsi driver qla2xxx, where a use-after-free condition occurred during unloading. This flaw led to system crashes with kernel bugs and invalid opcode errors. The UNLOADING flag, used to terminate dpc_thread, caused the issue when set at the wrong time. To rectify this, the UNLOADING signal was removed and the kthread_stop signal was used exclusively for exiting dpc_thread. The vulnerability resulted in a kernel panic with a stack trace and call trace pointing to various system functions.

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