f2fs: check if file namelen exceeds max value
commit 720db068 upstream. Dentry bitmap is not enough to detect incorrect dentries. So this patch also checks the namelen value of a dentry. Signed-off-by: Gong Chen <gongchen4@huawei.com> Signed-off-by: Sheng Yong <shengyong1@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1137c1d4
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