Crash in Linux Kernel SCSI Driver for FNIC During FDMI Timeouts

CVE-2025-38238

What is CVE-2025-38238?

A vulnerability exists in the SCSI driver for FNIC in the Linux kernel, where, under certain conditions, both RHBA and RPA FDMI requests may time out. This results in the driver attempting to reuse a frame for sending ABTS commands, leading to a crash due to double-free attempts. The issue has been addressed by ensuring that separate frames are allocated for the respective requests, thereby eliminating the crash scenario during timeout handling. Extensive testing was conducted to simulate various FDMI response drops, verifying the stability of the updated logic.

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