Null Pointer Dereference in Linux Kernel's MD Bitmap Management

CVE-2022-50402

What is CVE-2022-50402?

A vulnerability in the Linux kernel's management of md-bitmap can lead to a null pointer dereference if the return value of the md_bitmap_get_counter() function is not appropriately checked. This oversight allows for potential system instability, as accessing a null pointer can result in crashes or other unpredictable behavior within the kernel. Updates have been implemented to ensure that the return value is validated to prevent such dereferencing from occurring.

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