The Linux kernel's nfsd4_create() function stores the return value of nfsd4_acl_to_attr() in a status variable but then unconditionally overwrites it in subsequent code branches. This causes ACL translation errors to be silently discarded, resulting in the CREATE operation proceeding without applying the requested ACL. The fix introduces an early exit check after nfsd4_acl_to_attr(), similar to existing patterns in nfsd4_setattr(), to ensure ACL translation errors are properly handled and reported.

ACL translation errors during NFSv4 file creation are ignored, which can lead to files being created without the intended access control lists. This may result in weaker access controls than expected, potentially allowing unauthorized access or modification of files due to missing ACL enforcement.

A fix has been applied to the Linux kernel to add an early exit check for the return value of nfsd4_acl_to_attr() in nfsd4_create(). Users should update to a Linux kernel version that includes this fix to ensure proper ACL error handling during NFSv4 file creation.