Proper Error Handling in btrfs Decrement Reference Function

CVE-2024-46753

What is CVE-2024-46753?

In the Linux kernel, the following vulnerability has been resolved:

btrfs: handle errors from btrfs_dec_ref() properly

In walk_up_proc() we BUG_ON(ret) from btrfs_dec_ref(). This is incorrect, we have proper error handling here, return the error.

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References