[memdup_user_nul] BUG: unable to handle kernel NULL pointer dereference at 00000100

https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.misc commit c7af9d5728bed29ef614324e67e066896d087c8f Author: Al Viro AuthorDate: Thu Dec 24 00:13:10 2015 -0500 Commit: Al Viro CommitDate: Thu Dec 24 10:52:16 2015 -0500 kernel/*: switch to memdup_user_nul()

[memdup_user_nul] BUG: unable to handle kernel NULL pointer dereference at 00000100

https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.misc commit c7af9d5728bed29ef614324e67e066896d087c8f Author: Al Viro AuthorDate: Thu Dec 24 00:13:10 2015 -0500 Commit: Al Viro CommitDate: Thu Dec 24 10:52:16 2015 -0500