Linux Kernel Vulnerability Affecting SCSI Target Operations

CVE-2026-80691

What is CVE-2026-80691?

A vulnerability in the Linux kernel affects SCSI target operations, specifically in the iblock_execute_pr_out() function. The flaw arises from inadequate checks on callback capabilities, allowing unimplemented hooks to bypass error checks. This could lead to dereferencing a NULL function pointer, potentially causing instability or crashes in the system. It's crucial for users to apply security updates promptly to mitigate any risks associated with this issue.

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